{"id":6549,"date":"2022-04-02T22:02:55","date_gmt":"2022-04-02T22:02:55","guid":{"rendered":"https:\/\/humanbio.org\/?page_id=6549"},"modified":"2022-04-03T00:11:44","modified_gmt":"2022-04-03T00:11:44","slug":"muscle-structure","status":"publish","type":"page","link":"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscle-structure\/","title":{"rendered":"2b2 Muscle Structure"},"content":{"rendered":"<!--themify_builder_content-->\n<div id=\"themify_builder_content-6549\" data-postid=\"6549\" class=\"themify_builder_content themify_builder_content-6549 themify_builder tf_clear\">\n                    <div  data-parallax-bg=\"desktop\" data-css_id=\"crin502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth_row_container tb_crin502 tb_first tf_w\">\n            <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_uuwb503 first\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_e1ow503 image-center   tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=100%2C100&#038;ssl=1\" width=\"100\" height=\"100\" class=\"wp-post-image wp-image-363\" title=\"Number 2 orange square\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/>    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image --><!-- module text -->\n<div  class=\"module module-text tb_iaix503  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h1>Muscle Structure<\/h1>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module icon -->\n<div  class=\"module module-icon tb_4hez503  normal circle icon_horizontal tf_textl\" data-lazy=\"1\">\n\t\t\t<div class=\"module-icon-item\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<em class=\"tf_boxyellow\"\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t><svg  class=\"tf_fa tf-ti-angle-down\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" aria-hidden=\"true\"><use href=\"#tf-ti-angle-down\" xlink:href=\"#tf-ti-angle-down\"><\/use><\/svg><\/em>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>scroll down<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/div>\n<!-- \/module icon -->\n        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-css_id=\"44xe502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth_row_container tb_44xe502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_tv4m504 first\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_if4i504 image-top   tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1165\" height=\"874\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1165%2C874&#038;ssl=1\" class=\"wp-post-image wp-image-1718\" title=\"2\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1536%2C1152&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 1165px) 100vw, 1165px\" \/>    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_knqv504 last\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_5e72504  repeat  wow\" data-tf-animation=\"fadeInUp\" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>Muscle Structure Objectives<\/h3>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module text -->\n<div  class=\"module module-text tb_peyq504  repeat  wow\" data-tf-animation=\"fadeInUp\" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <ul>\n<li>\n<p><b>List and describe basic muscle system functions.<\/b><\/p>\n<\/li>\n<li><b>Describe the basic microanatomy of muscles, including what is meant by a &#8220;bundle within bundle&#8221; structure.<\/b><\/li>\n<li><b>Identify key muscles (or muscle groups), including muscles with opposing actions.<\/b><\/li>\n<\/ul>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_7bx0502 tf_w\">\n                        <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_ov53504 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_awzv504   \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: center;\"><strong>This video introduces the human muscular system with an overview of functions and structures.<\/strong><\/p>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module video -->\n<div  class=\"module module-video tb_w8kt504 video-top  \" data-lazy=\"1\">\n                    <div class=\"video-wrap-outer\">\n            <div class=\"video-wrap tf_rel tf_overflow\">\n                                    <noscript><iframe data-no-script src=\"https:\/\/player.vimeo.com\/video\/402295250?h=&#038;pip=1&#038;playsinline=1&#038;portrait=0&#038;title=0&#038;byline=0\" allow=\"fullscreen\" class=\"tf_abs tf_w tf_h\"><\/iframe><\/noscript>\n                                <\/div>\n            <!-- \/video-wrap -->\n        <\/div>\n        <!-- \/video-wrap-outer -->\n            <\/div>\n        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-desktop-padding=\"50px,50px\" data-parallax-bg=\"desktop\" data-css_id=\"hlcy502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth_row_container tb_hlcy502 tf_w\">\n            <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_rcla505 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_zeq3505  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n            <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_wf48502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-3 tb_o9fh505 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_6m6b505  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: center;\">These are the muscles, or groups of muscles, to know for this course.<\/p>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module video -->\n<div  class=\"module module-video tb_3i8j505 video-top  \" data-lazy=\"1\">\n                    <div class=\"video-wrap-outer\">\n            <div class=\"video-wrap tf_rel tf_overflow\">\n                                    <noscript><iframe data-no-script src=\"https:\/\/player.vimeo.com\/video\/403525290?h=&#038;pip=1&#038;playsinline=1&#038;portrait=0&#038;title=0&#038;byline=0\" allow=\"fullscreen\" class=\"tf_abs tf_w tf_h\"><\/iframe><\/noscript>\n                                <\/div>\n            <!-- \/video-wrap -->\n        <\/div>\n        <!-- \/video-wrap-outer -->\n            <\/div>\n        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-1 tb_xfzd505 last\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_9o5r505  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: left;\">Note: you may already know this, but it was news to me when I first started running.\u00a0 Many muscle names like &#8220;quadriceps&#8221; refer to groups of muscles, not individual muscles.\u00a0 Group names are easier to remember and you tend to use muscles in a group together at the same time.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_anr5502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-1 tb_zokh505 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_dgwm506  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: right;\">Some of out largest muscle groups have opposing actions.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-3 tb_9egf506 last\">\n                    <!-- module video -->\n<div  class=\"module module-video tb_5gzl506 video-top  \" data-lazy=\"1\">\n                    <div class=\"video-wrap-outer\">\n            <div class=\"video-wrap tf_rel tf_overflow\">\n                                    <noscript><iframe data-no-script src=\"https:\/\/player.vimeo.com\/video\/403527161?h=&#038;pip=1&#038;playsinline=1&#038;portrait=0&#038;title=0&#038;byline=0\" allow=\"fullscreen\" class=\"tf_abs tf_w tf_h\"><\/iframe><\/noscript>\n                                <\/div>\n            <!-- \/video-wrap -->\n        <\/div>\n        <!-- \/video-wrap-outer -->\n            <\/div>\n        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-desktop-padding=\"50px,50px\" data-parallax-bg=\"desktop\" data-css_id=\"8bef502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth_row_container tb_8bef502 tf_w\">\n            <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_r59y506 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_1xuj506  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n            <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_ph13502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_xckv506 first\">\n                    <!-- module video -->\n<div  class=\"module module-video tb_2ltj506 video-top  \" data-lazy=\"1\">\n                    <div class=\"video-wrap-outer\">\n            <div class=\"video-wrap tf_rel tf_overflow\">\n                                    <noscript><iframe data-no-script src=\"https:\/\/player.vimeo.com\/video\/403539714?h=&#038;pip=1&#038;playsinline=1&#038;portrait=0&#038;title=0&#038;byline=0\" allow=\"fullscreen\" class=\"tf_abs tf_w tf_h\"><\/iframe><\/noscript>\n                                <\/div>\n            <!-- \/video-wrap -->\n        <\/div>\n        <!-- \/video-wrap-outer -->\n            <\/div>\n        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_r4on506 last\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_atef506  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: left;\">Our body has three types of muscle tissue, we are working with one in this guide and the others in upcoming guides.<\/p>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module image -->\n<div  class=\"module module-image tb_zdcn507 image-top   tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1165\" height=\"776\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=1165%2C776&#038;ssl=1\" class=\"wp-post-image wp-image-1850\" title=\"muscle tissues\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=1536%2C1024&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 1165px) 100vw, 1165px\" \/>    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_qw28502 tf_w\">\n                        <div class=\"row_inner col_align_top tb_col_count_3 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col3-1 tb_hd07507 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_504r507  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: center;\"><strong>Cardiac<\/strong>: branching cells weave together strong heart tissue.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col3-1 tb_vn43507\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_py0b507  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: center;\"><strong>Smooth<\/strong>: spindle-shaped cells form tissue that wraps around hollow organs like the intestines.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col3-1 tb_jaf3507 last\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_lhu3507  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: center;\"><strong>Skeletal<\/strong>: long tube-shaped cells have clearly visible striations (stripes).\u00a0 This muscle type is found in our large skeletal muscles.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_6a28502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-1 tb_cglt507 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_y8ec507  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: right;\">Here is a closer look at skeletal muscle microanatomy.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-3 tb_4ne7507 last\">\n                    <!-- module video -->\n<div  class=\"module module-video tb_376a508 video-top  \" data-lazy=\"1\">\n                    <div class=\"video-wrap-outer\">\n            <div class=\"video-wrap tf_rel tf_overflow\">\n                                    <noscript><iframe data-no-script src=\"https:\/\/player.vimeo.com\/video\/403587063?h=&#038;pip=1&#038;playsinline=1&#038;portrait=0&#038;title=0&#038;byline=0\" allow=\"fullscreen\" class=\"tf_abs tf_w tf_h\"><\/iframe><\/noscript>\n                                <\/div>\n            <!-- \/video-wrap -->\n        <\/div>\n        <!-- \/video-wrap-outer -->\n            <\/div>\n        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_6bka502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-3 tb_avdk508 first\">\n                    <!-- module video -->\n<div  class=\"module module-video tb_7efs508 video-top  \" data-lazy=\"1\">\n                    <div class=\"video-wrap-outer\">\n            <div class=\"video-wrap tf_rel tf_overflow\">\n                                    <noscript><iframe data-no-script src=\"https:\/\/player.vimeo.com\/video\/310724736?h=&#038;pip=1&#038;playsinline=1&#038;portrait=0&#038;title=0&#038;byline=0\" allow=\"fullscreen\" class=\"tf_abs tf_w tf_h\"><\/iframe><\/noscript>\n                                <\/div>\n            <!-- \/video-wrap -->\n        <\/div>\n        <!-- \/video-wrap-outer -->\n            <\/div>\n        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-1 tb_flsd508 last\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_6stx508  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <p style=\"text-align: left;\">This video is showing a sagittal plane view of three skeletal muscle cells.<\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-anchor=\"reservation\" data-lazy=\"1\" class=\"module_row themify_builder_row tb_has_section tb_section-reservation tb_5b9v502 tf_w\">\n            <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_hnti508 first\">\n                            <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-desktop-padding=\"3px,3px\" data-css_id=\"hai9502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth_row_container tb_hai9502 tf_w\">\n                        <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_k21u508 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_v33z508  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h6>The next section focuses in on the tendons and ligaments that connect muscles and bones.<\/h6>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-css_id=\"dt7p502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth_row_container tb_dt7p502 tf_w\">\n                        <div class=\"row_inner col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_eodw509 first\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_8ck8509 image-top   tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1165\" height=\"874\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1165%2C874&#038;ssl=1\" class=\"wp-post-image wp-image-1718\" title=\"2\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1536%2C1152&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 1165px) 100vw, 1165px\" \/>    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_wzxj509 last\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_8mwk509  repeat  wow\" data-tf-animation=\"fadeInUp\" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h5>Check your knowledge.\u00a0 Can you:<\/h5>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module text -->\n<div  class=\"module module-text tb_7tg2509  repeat  wow\" data-tf-animation=\"fadeInUp\" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <ul>\n<li>\n<p><b>list and describe basic muscle system functions?<\/b><\/p>\n<\/li>\n<li><b>describe the basic microanatomy of muscles, including what is meant by a &#8220;bundle within bundle&#8221; structure?<\/b><\/li>\n<li><b>identify key muscles (or muscle groups), including muscles with opposing actions?<\/b><\/li>\n<\/ul>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-css_id=\"z6oj502\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth tb_z6oj502 tf_w\">\n            <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <div class=\"row_inner gutter-none col_align_middle tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_o1kd509 first\">\n        <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <!-- module image -->\n<div  class=\"module module-image tb_wpx6509 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscular-overview\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=100%2C100&#038;ssl=1\" width=\"100\" height=\"100\" class=\"wp-post-image wp-image-362\" title=\"Number 1 orange square\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image --><!-- module text -->\n<div  class=\"module module-text tb_56tr509  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>Go back to the Muscular Overview Page<\/h3>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_mhqe509 last\">\n        <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <!-- module image -->\n<div  class=\"module module-image tb_uh02509 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/tendons-ligaments\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=100%2C100&#038;ssl=1\" width=\"100\" height=\"100\" class=\"wp-post-image wp-image-364\" title=\"Number 3 orange square\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=768%2C770&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?w=997&amp;ssl=1 997w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image --><!-- module text -->\n<div  class=\"module module-text tb_4d3z509  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>Go forward to the Tendons &amp; Ligaments Page<\/h3>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_t1hz179 tf_w\">\n                        <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_8q0a179 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_n50n179  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>Muscular Lecture Guide Contents<\/h3>    <\/div>\n<\/div>\n<!-- \/module text --><!-- module divider -->\n<div  class=\"module tf_mw module-divider tb_r9pi179 solid  divider-custom divider-center\" style=\"border-width: 3px;border-color: #a86e22;margin-top: 10px;margin-bottom: 20px;max-width: 120px;\" data-lazy=\"1\">\n    <\/div>\n<!-- \/module divider -->\n<!-- module text -->\n<div  class=\"module module-text tb_yes2180  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h6>The material from this guide and corresponding lecture is assessed on the weekly quiz.<\/h6>    <\/div>\n<\/div>\n<!-- \/module text -->        <div  data-lazy=\"1\" class=\"module_subrow themify_builder_sub_row tf_w col_align_top tb_col_count_4 tb_j088180\">\n                <div  data-lazy=\"1\" class=\"module_column sub_column col4-1 tb_f235181 first\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_cki5181 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscular-overview\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=200%2C200&#038;ssl=1\" width=\"200\" height=\"200\" class=\"wp-post-image wp-image-362\" title=\"Muscular Overview\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <div class=\"image-content\">\n                    <h3 class=\"image-title\">\n                                    <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscular-overview\/#\">\n                        Muscular Overview                    <\/a>\n                            <\/h3>\n                    <\/div>\n    <!-- \/image-content -->\n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column sub_column col4-1 tb_tcpc181\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_h2dq181 image-top   tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=200%2C200&#038;ssl=1\" width=\"200\" height=\"200\" class=\"wp-post-image wp-image-363\" title=\"Muscular Structure - YOU ARE HERE\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/>    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <div class=\"image-content\">\n                    <h3 class=\"image-title\">\n                                    Muscular Structure - YOU ARE HERE                            <\/h3>\n                    <\/div>\n    <!-- \/image-content -->\n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column sub_column col4-1 tb_ytpw181\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_y3lt182 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/tendons-ligaments\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=200%2C200&#038;ssl=1\" width=\"200\" height=\"200\" class=\"wp-post-image wp-image-364\" title=\"Tendons &amp; Ligaments\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=768%2C770&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?w=997&amp;ssl=1 997w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <div class=\"image-content\">\n                    <h3 class=\"image-title\">\n                                    <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/tendons-ligaments\/#\">\n                        Tendons & Ligaments                    <\/a>\n                            <\/h3>\n                    <\/div>\n    <!-- \/image-content -->\n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column sub_column col4-1 tb_vvno182 last\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_bwpx182 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscles-exercise\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=200%2C200&#038;ssl=1\" width=\"200\" height=\"200\" class=\"wp-post-image wp-image-365\" title=\"Muscles &amp; Exercise\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=768%2C770&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?w=997&amp;ssl=1 997w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <div class=\"image-content\">\n                    <h3 class=\"image-title\">\n                                    <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscles-exercise\/#\">\n                        Muscles & Exercise                    <\/a>\n                            <\/h3>\n                    <\/div>\n    <!-- \/image-content -->\n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <\/div>\n                <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-css_id=\"cs19205\" data-lazy=\"1\" class=\"module_row themify_builder_row fullwidth tb_cs19205 tf_w\">\n            <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <div class=\"row_inner gutter-none col_align_top tb_col_count_3 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col3-1 tb_pvnw205 first\">\n        <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <!-- module image -->\n<div  class=\"module module-image tb_eodm206 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=100%2C100&#038;ssl=1\" width=\"100\" height=\"100\" class=\"wp-post-image wp-image-357\" title=\"Module Icon\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?w=995&amp;ssl=1 995w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image --><!-- module text -->\n<div  class=\"module module-text tb_np5v206  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>Back to Module 2<\/h3>\n<h5>This week&#8217;s overview<\/h5>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col3-1 tb_7ke8206\">\n        <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <!-- module image -->\n<div  class=\"module module-image tb_tabc206 image-top drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/#\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=100%2C100&#038;ssl=1\" width=\"100\" height=\"100\" class=\"wp-post-image wp-image-361\" title=\"Guide Icon\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 100px) 100vw, 100px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image --><!-- module text -->\n<div  class=\"module module-text tb_kcva206  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>This Guide<\/h3>\n<h5>Muscular<\/h5>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col3-1 tb_51aa206 last\">\n        <span  class=\"builder_row_cover tf_abs\" data-lazy=\"1\"><\/span>            <!-- module image -->\n<div  class=\"module module-image tb_wece206 image-top drop-shadow circle  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/oregonstate.instructure.com\">\n                   <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/vividscience.org\/wp-content\/uploads\/2018\/10\/Screen-Shot-2018-10-14-at-10.32.37-PM-3.png?resize=100%2C368\" width=\"100\" height=\"368\" alt=\"\">        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image --><!-- module text -->\n<div  class=\"module module-text tb_to9z206  repeat \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <h3>Direct Link to Canvas<\/h3>\n<h5>Submit Products<\/h5>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n        <\/div>\n<!--\/themify_builder_content-->","protected":false},"excerpt":{"rendered":"<p>Muscle Structure scroll down Muscle Structure Objectives List and describe basic muscle<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":6522,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-6549","page","type-page","status-publish","hentry","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"jetpack_sharing_enabled":true,"builder_content":"<img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square-100x100.jpg\" width=\"100\" height=\"100\" title=\"Number 2 orange square\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/>\n<h1>Muscle Structure<\/h1>\n<em ><svg xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" aria-hidden=\"true\"><use href=\"#tf-ti-angle-down\" xlink:href=\"#tf-ti-angle-down\"><\/use><\/svg><\/em> scroll down\n<img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg\" title=\"2\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1536%2C1152&amp;ssl=1 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/>\n<h3>Muscle Structure Objectives<\/h3>\n<ul> <li> <p><b>List and describe basic muscle system functions.<\/b><\/p> <\/li> <li><b>Describe the basic microanatomy of muscles, including what is meant by a \"bundle within bundle\" structure.<\/b><\/li> <li><b>Identify key muscles (or muscle groups), including muscles with opposing actions.<\/b><\/li> <\/ul>\n<p style=\"text-align: center;\"><strong>This video introduces the human muscular system with an overview of functions and structures.<\/strong><\/p>\n[embed]https:\/\/vimeo.com\/402295250[\/embed]\n\n<p style=\"text-align: center;\">These are the muscles, or groups of muscles, to know for this course.<\/p>\n[embed]https:\/\/vimeo.com\/403525290[\/embed]\n<p style=\"text-align: left;\">Note: you may already know this, but it was news to me when I first started running.\u00a0 Many muscle names like \"quadriceps\" refer to groups of muscles, not individual muscles.\u00a0 Group names are easier to remember and you tend to use muscles in a group together at the same time.<\/p>\n<p style=\"text-align: right;\">Some of out largest muscle groups have opposing actions.<\/p>\n[embed]https:\/\/vimeo.com\/403527161[\/embed]\n\n[embed]https:\/\/vimeo.com\/403539714[\/embed]\n<p style=\"text-align: left;\">Our body has three types of muscle tissue, we are working with one in this guide and the others in upcoming guides.<\/p>\n<img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg\" title=\"muscle tissues\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/muscle-tissues.jpg?resize=1536%2C1024&amp;ssl=1 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/>\n<p style=\"text-align: center;\"><strong>Cardiac<\/strong>: branching cells weave together strong heart tissue.<\/p>\n<p style=\"text-align: center;\"><strong>Smooth<\/strong>: spindle-shaped cells form tissue that wraps around hollow organs like the intestines.<\/p>\n<p style=\"text-align: center;\"><strong>Skeletal<\/strong>: long tube-shaped cells have clearly visible striations (stripes).\u00a0 This muscle type is found in our large skeletal muscles.<\/p>\n<p style=\"text-align: right;\">Here is a closer look at skeletal muscle microanatomy.<\/p>\n[embed]https:\/\/vimeo.com\/403587063[\/embed]\n[embed]https:\/\/vimeo.com\/310724736[\/embed]\n<p style=\"text-align: left;\">This video is showing a sagittal plane view of three skeletal muscle cells.<\/p>\n<h6>The next section focuses in on the tendons and ligaments that connect muscles and bones.<\/h6>\n<img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg\" title=\"2\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/04\/2-1.jpg?resize=1536%2C1152&amp;ssl=1 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/>\n<h5>Check your knowledge.\u00a0 Can you:<\/h5>\n<ul> <li> <p><b>list and describe basic muscle system functions?<\/b><\/p> <\/li> <li><b>describe the basic microanatomy of muscles, including what is meant by a \"bundle within bundle\" structure?<\/b><\/li> <li><b>identify key muscles (or muscle groups), including muscles with opposing actions?<\/b><\/li> <\/ul>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscular-overview\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square-100x100.jpg\" width=\"100\" height=\"100\" title=\"Number 1 orange square\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/> <\/a>\n<h3>Go back to the Muscular Overview Page<\/h3>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/tendons-ligaments\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square-100x100.jpg\" width=\"100\" height=\"100\" title=\"Number 3 orange square\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=768%2C770&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?w=997&amp;ssl=1 997w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/> <\/a>\n<h3>Go forward to the Tendons &amp; Ligaments Page<\/h3>\n<h3>Muscular Lecture Guide Contents<\/h3>\n\n<h6>The material from this guide and corresponding lecture is assessed on the weekly quiz.<\/h6>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscular-overview\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square-200x200.jpg\" width=\"200\" height=\"200\" title=\"Muscular Overview\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-1-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/> <\/a> <h3> <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscular-overview\/#\"> Muscular Overview <\/a> <\/h3>\n<img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square-200x200.jpg\" width=\"200\" height=\"200\" title=\"Muscular Structure - YOU ARE HERE\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-2-orange-square.jpg?w=995&amp;ssl=1 995w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/> <h3> Muscular Structure - YOU ARE HERE <\/h3>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/tendons-ligaments\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square-200x200.jpg\" width=\"200\" height=\"200\" title=\"Tendons &amp; Ligaments\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=768%2C770&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-3-orange-square.jpg?w=997&amp;ssl=1 997w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/> <\/a> <h3> <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/tendons-ligaments\/#\"> Tendons & Ligaments <\/a> <\/h3>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscles-exercise\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square-200x200.jpg\" width=\"200\" height=\"200\" title=\"Muscles &amp; Exercise\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=768%2C770&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Number-4-orange-square.jpg?w=997&amp;ssl=1 997w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/> <\/a> <h3> <a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/muscles-exercise\/#\"> Muscles & Exercise <\/a> <\/h3>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon-100x100.jpg\" width=\"100\" height=\"100\" title=\"Module Icon\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Module-Icon.jpg?w=995&amp;ssl=1 995w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/> <\/a>\n<h3>Back to Module 2<\/h3> <h5>This week's overview<\/h5>\n<a href=\"https:\/\/humanbio.org\/index.php\/campus-humanbio\/movement\/muscular\/#\"> <img src=\"https:\/\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon-100x100.jpg\" width=\"100\" height=\"100\" title=\"Guide Icon\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/humanbio.org\/wp-content\/uploads\/2020\/03\/Guide-Icon.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/> <\/a>\n<h3>This Guide<\/h3> <h5>Muscular<\/h5>\n<a href=\"https:\/\/oregonstate.instructure.com\"> <img src=\"http:\/\/vividscience.org\/wp-content\/uploads\/2018\/10\/Screen-Shot-2018-10-14-at-10.32.37-PM-3.png\" width=\"100\" height=\"368\" alt=\"\"> <\/a>\n<h3>Direct Link to Canvas<\/h3> <h5>Submit Products<\/h5>","_links":{"self":[{"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/pages\/6549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/comments?post=6549"}],"version-history":[{"count":5,"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/pages\/6549\/revisions"}],"predecessor-version":[{"id":6628,"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/pages\/6549\/revisions\/6628"}],"up":[{"embeddable":true,"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/pages\/6522"}],"wp:attachment":[{"href":"https:\/\/humanbio.org\/index.php\/wp-json\/wp\/v2\/media?parent=6549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}