{"id":2277,"date":"2019-02-27T05:05:26","date_gmt":"2019-02-27T05:05:26","guid":{"rendered":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/?p=2277"},"modified":"2020-01-01T09:36:04","modified_gmt":"2020-01-01T17:36:04","slug":"muscles-external-anal-sphincter","status":"publish","type":"post","link":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/anatomyphysiologymuscles\/muscles-external-anal-sphincter\/","title":{"rendered":"Muscles: External Anal Sphincter."},"content":{"rendered":"<p><a href=\"http:\/\/www.integrativewellnessandmovement.com\/iwmstudentresources\/iwmmuscles\/IWM-APMuscles-externalanalsphincter.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Download these notes.<\/a><\/p>\n<p>Structure.<\/p>\n<ul>\n<li>Origin: anococcygeal ligament.<\/li>\n<li>Insertion: perineal body of perineum.<\/li>\n<li>Spans above and below the pectinate (dentate) line.<\/li>\n<\/ul>\n<p>Function.<\/p>\n<ul>\n<li>Concentric action: keeps anal canal and anus closed.<\/li>\n<li>Isometric action:<\/li>\n<li>Innervation: sacral spinal nerve S4 and inferior rectal branch of pudendal nerve.<\/li>\n<li>Arterial supply: superior rectal artery, contributions from middle rectal and median sacral arteries (above dentate line); inferior rectal artery from internal pudendal artery (below dentate line).<\/li>\n<\/ul>\n<p>Clinical Significance.<\/p>\n<p>\u00a0<\/p>\n\n\n<div class=\"rl-gallery-container rl-loading\" id=\"rl-gallery-container-1\" data-gallery_id=\"5596\"> <div class=\"rl-gallery-description\">External anal sphincter. Used with permission by 3D4Medical.<\/div> <div class=\"rl-gallery rl-basicgrid-gallery \" id=\"rl-gallery-1\" data-gallery_no=\"1\"> <div class=\"rl-gallery-item\"><a href=\"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-content\/uploads\/2019\/12\/external-anal-sphincterED2.jpg\" title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-content\/uploads\/2019\/12\/external-anal-sphincterED2-300x226.jpg\" width=\"300\" height=\"226\" alt=\"\" \/><\/a><\/div><div class=\"rl-gallery-item\"><a href=\"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-content\/uploads\/2019\/12\/external-anal-sphincterED1.jpg\" title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-content\/uploads\/2019\/12\/external-anal-sphincterED1-300x226.jpg\" width=\"300\" height=\"226\" alt=\"\" \/><\/a><\/div><div class=\"rl-gallery-item\"><a href=\"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-content\/uploads\/2019\/12\/external-anal-sphincterED3.jpg\" title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-content\/uploads\/2019\/12\/external-anal-sphincterED3-300x226.jpg\" width=\"300\" height=\"226\" alt=\"\" \/><\/a><\/div> <\/div> <\/div>\n\n\n\n<p>References<\/p>\n\n\n\n<p>Biel,&nbsp;A. (2015).&nbsp;<em>Trail guide to the body: A hands-on guide to locating muscles, bones and more<\/em>.<\/p>\n\n\n\n<p>Clark,&nbsp;M., Lucett,&nbsp;S., Sutton,&nbsp;B.&nbsp;G., &amp; National Academy of Sports Medicine. (2014).&nbsp;<em>NASM essentials of corrective exercise training<\/em>. Burlington, MA: Jones &amp; Bartlett Learning.<\/p>\n\n\n\n<p>Jenkins,&nbsp;G., &amp; Tortora,&nbsp;G.&nbsp;J. (2012).&nbsp;<em>Anatomy and Physiology: From Science to Life, 3rd Edition International Stu<\/em>. John Wiley &amp; Sons.<\/p>\n\n\n\n<p>Muscolino,&nbsp;J.&nbsp;E. (2017).&nbsp;<em>The muscular system manual: The skeletal muscles of the human body<\/em>.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Download these notes. Structure. Origin: anococcygeal ligament. Insertion: perineal body of perineum. Spans above and below the pectinate (dentate) line. Function. Concentric action: keeps anal canal and anus closed. Isometric action: Innervation: sacral spinal nerve S4 and inferior rectal branch of pudendal nerve. Arterial supply: superior rectal artery, contributions from middle rectal and median sacral [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-2277","post","type-post","status-publish","format-standard","hentry","category-anatomyphysiologymuscles"],"_links":{"self":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/posts\/2277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/comments?post=2277"}],"version-history":[{"count":3,"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/posts\/2277\/revisions"}],"predecessor-version":[{"id":5766,"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/posts\/2277\/revisions\/5766"}],"wp:attachment":[{"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/media?parent=2277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/categories?post=2277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/integrativewellnessandmovement.com\/iwmanatphys\/wp-json\/wp\/v2\/tags?post=2277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}