{"id":523,"date":"2020-12-17T10:35:24","date_gmt":"2020-12-17T17:35:24","guid":{"rendered":"https:\/\/edmontonboneandjoint.ca\/?page_id=523"},"modified":"2021-06-21T12:22:26","modified_gmt":"2021-06-21T18:22:26","slug":"anatomy-of-the-shoulder","status":"publish","type":"page","link":"https:\/\/edmontonboneandjoint.ca\/services\/shoulder\/anatomy-of-the-shoulder\/","title":{"rendered":"Anatomy of the Shoulder"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kgsbrcxr-af229da37594eac306384189b0813593\">\n.avia-section.av-kgsbrcxr-af229da37594eac306384189b0813593{\nbackground-repeat:no-repeat;\nbackground-image:url(https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2020\/11\/edmonton-bone-and-joint-hdr_shoulder.jpg);\nbackground-position:0% 0%;\nbackground-attachment:scroll;\n}\n<\/style>\n<div id='hdr'  class='avia-section av-kgsbrcxr-af229da37594eac306384189b0813593 alternate_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_postcontent  avia-builder-el-first  avia-full-stretch avia-bg-style-scroll av-minimum-height av-minimum-height-custom av-height-custom  container_wrap sidebar_right'  data-section-bg-repeat='stretch' data-av_minimum_height_px='550'><div class='container av-section-cont-open' style='height:550px'><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-523'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kgsbv8za-517d6935bb8f2f14a2a5e99af9ea632e\">\n#top .hr.hr-invisible.av-kgsbv8za-517d6935bb8f2f14a2a5e99af9ea632e{\nheight:24px;\n}\n<\/style>\n<div  class='hr av-kgsbv8za-517d6935bb8f2f14a2a5e99af9ea632e hr-invisible  avia-builder-el-1  el_before_av_one_full  avia-builder-el-first '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-29yy6-c822546af978b6407805b18c1145ebf8\">\n.flex_column.av-29yy6-c822546af978b6407805b18c1145ebf8{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-29yy6-c822546af978b6407805b18c1145ebf8 av_one_full  avia-builder-el-2  el_after_av_hr  avia-builder-el-last  first flex_column_div av-animated-generic fade-in av-zero-column-padding  '     ><section  id=\"eb-pgtit\"  class='av_textblock_section av-kgsbqpv6-0af139f8a74ab4f9c46073de60de7871 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><blockquote>\n<h1>Anatomy of<br \/>\nthe Shoulder<\/h1>\n<\/blockquote>\n<\/div><\/section><\/div>\n\n[av_one_full first min_height='' vertical_alignment='' space='' row_boxshadow='' row_boxshadow_color='' row_boxshadow_width='10' custom_margin='' margin='0px' mobile_breaking='' border='' border_color='' radius='0px' padding='0px' column_boxshadow='' column_boxshadow_color='' column_boxshadow_width='10' background='bg_color' background_color='' background_gradient_color1='' background_gradient_color2='' background_gradient_direction='vertical' src='' background_position='top left' background_repeat='no-repeat' highlight='' highlight_size='' animation='' link='' linktarget='' link_hover='' title_attr='' alt_attr='' mobile_display='' id='' custom_class='' aria_label='' av_uid='av-bbm8v']\r\n[av_hr class='invisible' icon_select='no' icon='ue808' font='entypo-fontello' position='left' shadow='no-shadow' height='-34' custom_border='av-border-fat' custom_width='100px' custom_margin_top='0px' custom_margin_bottom='8px' custom_border_color='#b1c52e' custom_icon_color='' id='' custom_class='' av_uid='av-jxq9gmr4' admin_preview_bg='']\r\n\r\n[av_codeblock wrapper_element='' wrapper_element_attributes='' codeblock_type='' alb_description='' id='' custom_class='' av_uid='av-kjxju7uo']\r\n[av_breadcrumbs]\r\n[\/av_codeblock]\r\n[\/av_one_full]\r\n\r\n\n<div class='flex_column_table av-mj03w-b3b95ea277acd00eb40aa4bff8667533 sc-av_one_half av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mj03w-b3b95ea277acd00eb40aa4bff8667533\">\n.flex_column.av-mj03w-b3b95ea277acd00eb40aa4bff8667533{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-mj03w-b3b95ea277acd00eb40aa4bff8667533 av_one_half  avia-builder-el-5  el_after_av_postcontent  el_before_av_one_half  avia-builder-el-first  first flex_column_table_cell av-equal-height-column av-align-top av-animated-generic pop-up av-zero-column-padding  '     ><section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Anatomy of the Shoulder<\/h2>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jxq9gmr4-c1dd06fd848263c281cc78b6312a4810\">\n#top .hr.av-jxq9gmr4-c1dd06fd848263c281cc78b6312a4810{\nmargin-top:0px;\nmargin-bottom:8px;\n}\n.hr.av-jxq9gmr4-c1dd06fd848263c281cc78b6312a4810 .hr-inner{\nwidth:50px;\nborder-color:#b1c52e;\n}\n<\/style>\n<div  class='hr av-jxq9gmr4-c1dd06fd848263c281cc78b6312a4810 hr-custom  avia-builder-el-7  el_after_av_textblock  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>The shoulder is a <strong>ball and socket joint<\/strong>. The ball is at the top of the upper arm bone (humerus) and the socket (glenoid) is part of the shoulder blade (scapula). When you lift your arm or reach overhead both parts of the joint are moving in a coordinated way to give you mobility. This is controlled by muscles.<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27\">\n#top .hr.hr-invisible.av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27 hr-invisible  avia-builder-el-9  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Scapulohumeral Muscles<\/h3>\n<p><strong>What are they?<\/strong> The rotator cuff, deltoid and teres major muscles.<\/p>\n<p><strong>What do they do?<\/strong> These muscles rotate the shoulder joint and lift the arm.<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27\">\n#top .hr.hr-invisible.av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27 hr-invisible  avia-builder-el-11  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Rotator Cuff<\/h3>\n<p><strong>What are they?<\/strong> The supraspinatus, infraspinatus, subscapularis and teres minor muscles.<\/p>\n<p><strong>What do they do?<\/strong><\/p>\n<ul>\n<li>Centre the ball of the shoulder in the socket during movement.<\/li>\n<li>Rotate the shoulder to reach up behind our head and down behind our lower back.<\/li>\n<li>Give us the ability to lift our arm above shoulder height.<\/li>\n<li>Provide strength at shoulder height and overhead.<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mj03w-f03ea511fe8813b3a682c5f3f0f85bb4\">\n.flex_column.av-mj03w-f03ea511fe8813b3a682c5f3f0f85bb4{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-mj03w-f03ea511fe8813b3a682c5f3f0f85bb4 av_one_half  avia-builder-el-13  el_after_av_one_half  el_before_av_one_half  flex_column_table_cell av-equal-height-column av-align-top av-animated-generic pop-up av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kitc3991-c731aae9cf6908cc38b2f6ab2a778c7c\">\n.avia-image-container.av-kitc3991-c731aae9cf6908cc38b2f6ab2a778c7c img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-kitc3991-c731aae9cf6908cc38b2f6ab2a778c7c .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-kitc3991-c731aae9cf6908cc38b2f6ab2a778c7c av-styling- avia_animated_image av-animated-when-visible-95 fade-in avia-align-center  avia-builder-el-14  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-1610 avia-img-lazy-loading-not-1610 avia_image ' src=\"https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/06\/Updated-Shoulder-Anatomy-Photo.png\" alt='' title='Updated Shoulder Anatomy Photo'  height=\"542\" width=\"858\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/06\/Updated-Shoulder-Anatomy-Photo.png 858w, https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/06\/Updated-Shoulder-Anatomy-Photo-300x190.png 300w, https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/06\/Updated-Shoulder-Anatomy-Photo-768x485.png 768w, https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/06\/Updated-Shoulder-Anatomy-Photo-705x445.png 705w\" sizes=\"(max-width: 858px) 100vw, 858px\" \/><\/div><\/div><\/div><\/div><\/div><!--close column table wrapper. Autoclose: 1 --><div class='flex_column_table av-mj03w-b3b95ea277acd00eb40aa4bff8667533 sc-av_one_half av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mj03w-b3b95ea277acd00eb40aa4bff8667533\">\n.flex_column.av-mj03w-b3b95ea277acd00eb40aa4bff8667533{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-mj03w-b3b95ea277acd00eb40aa4bff8667533 av_one_half  avia-builder-el-15  el_after_av_one_half  el_before_av_one_half  first flex_column_table_cell av-equal-height-column av-align-top av-animated-generic pop-up av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Scapulothoracic Muscles<\/h3>\n<p><strong>What are they?<\/strong> These muscles include your upper, middle and lower trapezius muscles, the rhomboids, levator scapulae, serratus anterior and pectoralis minor muscles.<\/p>\n<p><strong>What do they do?<\/strong> These muscles control movement of the shoulder blade (scapula).<\/p>\n<ul>\n<li>Move the shoulder joint as a whole up, down, forward and back e.g. when you shrug your shoulders up to your ears.<\/li>\n<li>Move the shoulder blade when you lift your arm overhead.<\/li>\n<li>Anchor and stabilize the shoulder blade against the rib cage when your use your arms in prolonged positions, with repetitive overhead activity or for powerful movements like pushing, pulling, lifting and throwing.<\/li>\n<\/ul>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27\">\n#top .hr.hr-invisible.av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-jxq9gmr4-93dc36dbcccc198059020a09a1607b27 hr-invisible  avia-builder-el-17  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Working Together<\/h3>\n<p>The scapulothoracic and scapulohumeral muscles work in a coordinated way to create normal painfree movement at the shoulder joint. In addition, they provide stability to the shoulder joint while you move.<\/p>\n<\/div><\/section><br \/>\n<section  class='av_textblock_section av-jnw5fpmv-8e69c58f778aaa6b2eab52d90c1ca3e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>Many factors can contribute to shoulder pain and\/or can alter how we move:<\/strong><\/p>\n<ul>\n<li>poor posture<\/li>\n<li>muscle weakness<\/li>\n<li>repetitive overhead movement<\/li>\n<li>sustained postures or positioning<\/li>\n<li>muscle or joint injury (rotator cuff tear, dislocation or fracture)<\/li>\n<li>rheumatoid or osteoarthritis<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div><\/p>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mj03w-f03ea511fe8813b3a682c5f3f0f85bb4\">\n.flex_column.av-mj03w-f03ea511fe8813b3a682c5f3f0f85bb4{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-mj03w-f03ea511fe8813b3a682c5f3f0f85bb4 av_one_half  avia-builder-el-20  el_after_av_one_half  avia-builder-el-last  flex_column_table_cell av-equal-height-column av-align-top av-animated-generic pop-up av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kitc3991-690433046f29a98c618106d704183dfa\">\n.avia-image-container.av-kitc3991-690433046f29a98c618106d704183dfa img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-kitc3991-690433046f29a98c618106d704183dfa .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-kitc3991-690433046f29a98c618106d704183dfa av-styling- avia_animated_image av-animated-when-visible-95 fade-in avia-align-center  avia-builder-el-21  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-1408 avia-img-lazy-loading-not-1408 avia_image ' src=\"https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/02\/edmonton-bone-joint-shoulder-anatomy-trapezius.jpg\" alt='' title='edmonton-bone-joint-shoulder-anatomy-trapezius'  height=\"533\" width=\"800\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/02\/edmonton-bone-joint-shoulder-anatomy-trapezius.jpg 800w, https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/02\/edmonton-bone-joint-shoulder-anatomy-trapezius-300x200.jpg 300w, https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/02\/edmonton-bone-joint-shoulder-anatomy-trapezius-768x512.jpg 768w, https:\/\/edmontonboneandjoint.ca\/wp-content\/uploads\/2021\/02\/edmonton-bone-joint-shoulder-anatomy-trapezius-705x470.jpg 705w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/div><\/div><\/div><\/div><\/div><!--close column table wrapper. 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