{"id":3629,"date":"2021-01-08T00:15:09","date_gmt":"2021-01-07T23:15:09","guid":{"rendered":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/upper-limb\/axilla\/brachial-plexus\/"},"modified":"2021-12-11T19:25:16","modified_gmt":"2021-12-11T17:25:16","slug":"brachial-plexus","status":"publish","type":"page","link":"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/upper-limb\/axilla\/brachial-plexus\/","title":{"rendered":"Brachial plexus"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><div class=\"intro\">The brachial plexus is a major somatic nerve network supplying the upper limb. It is formed in the neck by the union of the anterior rami of spinal nerves C5-T1.<\/div><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/brachial-plexus.png\" alt=\"\" class=\"wp-image-4880\" width=\"840\" height=\"264\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/brachial-plexus.png 1009w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/brachial-plexus-300x95.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/brachial-plexus-768x242.png 768w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><figcaption><strong>Figure 1. The lower neck and upper chest showing the brachial plexus<\/strong><\/figcaption><\/figure>\n\n\n<span class=\"block-heading\" id=\"header_1\">\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Description<\/h3>\n<\/span><span class=\"block-content\" id=\"contents_1\">\n\n\n<p class=\"wp-block-paragraph\">The brachial plexus originates in the neck, with its roots passing through the gap between the anterior and middle scalene muscles with the subclavian artery. It then extends laterally and inferiorly over the first rib to enter the axilla.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"wp-block-paragraph\">It can be broken down into sections, similar to that of a tree.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Roots<\/li><li>Trunks<\/li><li>Divisions<\/li><li>Cords<\/li><li>Terminal branches<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>roots<\/strong> are formed from the <em>anterior rami of C5-T1 and sympathetic fibers <\/em>received from the gray rami of the middle and inferior cervical ganglia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The roots then unite in the <em>posterior triangle of the neck<\/em> to form three trunks:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Superior trunk<\/strong>: formed by the union of C5 and C6 roots<\/li><li><strong>Middle trunk<\/strong>: a continuation of C7 root<\/li><li><strong>Inferior trunk<\/strong>: formed by the union of C8 and T1 roots<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Each of the three trunks then gives off <em>one anterior and one posterior division<\/em>, as they pass down through the <strong><a href=\"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/upper-limb\/axilla\/#Cervicoaxillary_canal\" target=\"_blank\" rel=\"noreferrer noopener\">cervicoaxillary canal<\/a><\/strong> posterior to the clavicle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>divisions <\/strong>then form the <strong>three cords<\/strong> of the brachial plexus:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>The lateral cord<\/strong>: formed by the union of 2 anterior divisions from the <strong>upper and middle trunks<\/strong>, and therefore receives its fibers from <strong>C5-C7 roots<\/strong><\/li><li><strong>The posterior cord<\/strong>: formed by the union of 3 posterior divisions from the <strong>upper, middle and inferior trunks<\/strong>, and therefore receives fibers from the entire brachial plexus <strong>(C5-T1)<\/strong><\/li><li><strong>The inferior cord: <\/strong>A continuation of the anterior division of the inferior trunk, and therefore receives its fibers solely from <strong>C8-T1 roots<\/strong><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><em>The cords receive their names by their anatomic relation to the second part of the axillary artery<\/em>; that is, the lateral cord is positioned lateral to the axillary artery, the posterior cord lies posteriorly to the axillary artery, and the inferior cord can be found inferior to the axillary artery.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-2.png\" target=\"_blank\" title=\"Brachial plexus\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"140\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-2-300x140.png\" alt=\"\" class=\"wp-image-3900\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-2-300x140.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-2-1024x478.png 1024w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-2-768x358.png 768w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-2.png 1500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption><strong>Figure 2. Schematic drawing of the brachial plexus<\/strong><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-dissection.png\" target=\"_blank\" title=\"Brachial plexus\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-dissection-300x225.png\" alt=\"\" class=\"wp-image-3904\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-dissection-300x225.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-dissection-768x576.png 768w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/01\/brachial-plexus-dissection.png 960w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption><strong>Figure 3. Dissection of the brachial plexus<\/strong><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n<\/span><span class=\"block-heading\" id=\"header_2\">\n<h4 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title2\">Terminal branches<\/h4>\n<\/span><span class=\"block-content\" id=\"contents_2\">\n\n\n<p class=\"wp-block-paragraph\">In general, nerves supplying the <em>anterior compartment<\/em> of the upper limb arise from the <em>lateral and medial cords<\/em> of the brachial plexus, while nerves supplying the <em>posterior compartment<\/em> of the upper limb arise from the <em>posterior cord<\/em> of the plexus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In addition, the brachial plexus is divided into <strong>supraclavicular <\/strong>and <strong>infraclavicular parts<\/strong>, according to their anatomic relation to the clavicle.<\/p>\n\n\n<\/span><span class=\"block-heading\" id=\"header_3\">\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Supraclavicular branches<\/h3>\n<\/span><span class=\"block-content\" id=\"contents_3\">\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"pure-table\"><thead><tr><th>Nerve<\/th><th>Type<\/th><th>Origin<\/th><th>Sensory innervation<\/th><th>Motor innervation<\/th><\/tr><\/thead><tbody><tr><td><strong>Dorsal scapular nerve<\/strong><\/td><td>Motor<\/td><td>C5 root<\/td><td><\/td><td>Rhomboid muscles<\/td><\/tr><tr><td><strong>Long thoracic nerve<\/strong><\/td><td>Motor<\/td><td>C5-C7 roots<\/td><td><\/td><td>Serratus anterior muscle<\/td><\/tr><tr><td><strong>Suprascapular nerve<\/strong><\/td><td>Sensory and motor<\/td><td>C5-C6 (superior trunk)<\/td><td>Glenohumeral joint<\/td><td>Supra- and infraspinatus muscles<\/td><\/tr><\/tbody><\/table><figcaption><strong>Table 1. Summary of the supraclavicular branches<\/strong><\/figcaption><\/figure>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>Dorsal scapular nerve<\/strong><ul><li>Pierces the <em>middle scalene muscle<\/em> and travels posteriorly along the medial border of the scapula<\/li><\/ul><\/li><li><strong>Long thoracic nerve<\/strong><ul><li>Passes inferiorly<em> <\/em>through the <em>cervicoaxillary canal<\/em> and along the medial wall of the axilla, on the superficial surface of the serratus anterior muscle.<\/li><\/ul><\/li><li><strong>Suprascapular nerve<\/strong>&nbsp;<ul><li>Passes laterally through the <em>posterior triangle of the neck<\/em>, superior to the brachial plexus<strong>.<\/strong><\/li><li>Enters the <em>scapular notch<\/em> to reach the posterior scapular region.<\/li><\/ul><\/li><\/ol>\n\n\n<\/span><span class=\"block-heading\" id=\"header_4\">\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">Infraclavicular branches<\/h3>\n<\/span><span class=\"block-content\" id=\"contents_4\">\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"pure-table\"><thead><tr><th>Nerve<\/th><th>Type<\/th><th>Origin<\/th><th>Sensory innervation<\/th><th>Motor innervation<\/th><\/tr><\/thead><tbody><tr><td><strong>Lateral pectoral nerve<\/strong><\/td><td>Motor<\/td><td>C5-C7 (lateral cord)<\/td><td><\/td><td>Pectoralis major muscle<\/td><\/tr><tr><td><strong>Musculocutaneous nerve<\/strong><\/td><td>Sensory and motor<\/td><td>C5-C7 (lateral cord)<\/td><td>Lateral aspect of the forearm<\/td><td>Coracobrachialis, biceps brachii, and brachialis muscles<\/td><\/tr><tr><td><strong>Median nerve<\/strong><\/td><td>Sensory and motor<\/td><td>C5-C7 (lateral cord), and C8-T1 (medial root)<\/td><td><br>Anterolateral hand (described below)<\/td><td>Muscles of the anterior compartment of the forearm (except for flexor carpi ulnaris and flexor digitorum profundus), thenars, lumbricals<\/td><\/tr><tr><td><strong>Medial pectoral nerve<\/strong><\/td><td>Motor<\/td><td>C8-T1 (medial cord)<\/td><td><\/td><td>Pectoralis minor muscle and the sternocostal part of the pectoralis major muscle<\/td><\/tr><tr><td><strong>Medial cutaneous nerve of the arm <\/strong><\/td><td>Sensory<\/td><td>C8-T2 (medial cord)<\/td><td>Medial aspect of the arm, down to the level of the medial epicondyle of the humerus<\/td><td><\/td><\/tr><tr><td><strong>Medial cutaneous nerve of the forearm<\/strong><\/td><td>Sensory<\/td><td>C8, T1 (medial cord)<\/td><td>Medial aspect of the forearm down to the level of the wrist<\/td><td><\/td><\/tr><tr><td><strong>Ulnar nerve<\/strong><\/td><td>Sensory and motor<\/td><td>C8, T1 (medial cord)<\/td><td>Palmar surface of digit V, the medial half of the digit IV, and the dorsal surface of the hand<\/td><td>Flexor carpi ulnaris and ulnar part of the flexor digitorum profundus muscles, as well as all intrinsic muscles of the hand (except for the five muscles innervated by the median nerve)<\/td><\/tr><tr><td><strong>Upper subscapular nerve<\/strong><\/td><td>Motor<\/td><td>C5 (posterior cord)<\/td><td><\/td><td>Superior part of the subscapularis muscle<\/td><\/tr><tr><td><strong>Lower subscapular nerve<\/strong><\/td><td>Motor<\/td><td>C6 (posterior cord)<\/td><td><\/td><td>Inferior part of the subscapularis muscle and the teres major muscle<\/td><\/tr><tr><td><strong>Thoracodorsal nerve<\/strong><\/td><td>Motor<\/td><td>C6-C8 (posterior cord)<\/td><td><\/td><td>Latissimus dorsi muscle<\/td><\/tr><tr><td><strong>Axillary nerve<\/strong><\/td><td>Sensory and motor<\/td><td>C5, C6 (posterior corrd)<\/td><td>Superolateral aspect of the arm<\/td><td>Teres minor and deltoid muscles<\/td><\/tr><tr><td><strong>Radial nerve<\/strong><\/td><td>Sensory and motor<\/td><td>C5-T1 (posterior cord)<\/td><td>Posterior and lower lateral aspects of the arm, the posterior aspect of the forearm, and the dorsal lateral surface of the hand.<\/td><td>All the muscles of the posterior compartments of the arm and form<\/td><\/tr><\/tbody><\/table><figcaption><strong>Table 2. Summary of the infraclavicular branches<\/strong><\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<ol class=\"wp-block-list\" id=\"block-89e3f1cf-015e-4244-b9fc-2d182074b993\"><li><strong>Lateral pectoral nerve<\/strong>&nbsp;<ul><li>Passes anteriorly and pierces the<em> costocoracoid membrane<\/em> to reach the deep aspects of the <em>pectoralis muscles<\/em>.<\/li><\/ul><\/li><li><strong>Musculocutaneous nerve<\/strong>&nbsp;<ul><li>Passes laterally and penetrates the <em>coracobrachialis muscle<\/em>, to travel down between the <em>biceps brachii <\/em>and <em>brachialis muscles<\/em>.<\/li><li>Terminates laterally as the <strong>lateral cutaneous nerve of the forearm.<\/strong><\/li><\/ul><\/li><li><strong>Median nerve<\/strong>&nbsp;<ul><li>Originates from two roots (medial and lateral); they merge laterally to the third part of the axillary artery, forming the median nerve.<\/li><li>The nerve travels down next to the brachial artery, ultimately to lie medial to the brachial artery in the cubital fossa.<\/li><li>The pattern of the cutaneous innervation is the palmar digits I-III and the lateral half of digit IV, and the dorsal surface of the distal phalanges of digits I-III.<\/li><\/ul><\/li><li><strong>Medial pectoral nerve<\/strong><ul><li>Passes down between the axillary artery and vein to pierce the pectoralis minor muscle.<\/li><\/ul><\/li><li><strong>Medial cutaneous nerve of the arm<\/strong>&nbsp;(medial brachial cutaneous nerve)<ul><li>Passes medial to the axillary artery and vein along the arm<\/li><\/ul><\/li><li><strong>Medial cutaneous nerve of the forearm<\/strong> (medial antebrachial cutaneous nerve)<ul><li>Passes down the arm with the ulnar nerve and pierces the deep fascia with the basilic vein to reach the subcutaneous tissue, then<strong> divides into anterior and posterior branches.<\/strong><\/li><\/ul><\/li><li><strong>Ulnar nerve<\/strong><ul><li>The ulnar nerve is the <strong>terminal branch of the medial cord.<\/strong><\/li><li>It often receives communicating fibers from C7.<\/li><li>Initially descends on the medial aspect of the arm, then <em>passes posterior to the medial epicondyle of the humerus<\/em><strong>.<\/strong><\/li><li>It then travels along the ulnar side of the forearm and reaches the hand.<\/li><\/ul><\/li><li><strong>Upper subscapular nerve<\/strong><ul><li>Passes posteriorly to immediately enter the Subscapularis muscle.<\/li><\/ul><\/li><li><strong>Lower subscapular nerve<\/strong><ul><li>Passes inferolaterally along the posterior axillary wall.<\/li><\/ul><\/li><li><strong>Thoracodorsal nerve<\/strong><ul><li>Passes inferiorly along the posterior axillary wall to reach the apical part of the latissimus dorsi muscle<\/li><\/ul><\/li><li><strong>Axillary nerve<\/strong><ul><li>The axillary nerve passes posteriorly through the axillary fossa to enter the <em>quadrangular space<\/em>, along with the posterior circumflex humeral artery.<\/li><li>At that point, it <strong>gives rise to the superior lateral brachial cutaneous nerve<\/strong>, and finally, it passes <strong>around the surgical neck<\/strong> of the humerus deep to the deltoid muscle.&nbsp;<\/li><\/ul><\/li><li><strong>Radial nerve<\/strong><ul><li>The radial nerve is the <strong>largest branch<\/strong> of the brachial plexus.<\/li><li>It exits the axillary fossa posterior to the Axillary artery, and travels <em>in the radial groove <\/em>with the deep brachial artery between the<em> lateral and medial heads of the triceps <\/em>muscle, down to the level of the lateral intermuscular septum, which it pierces. <\/li><li>It then enters the cubital fossa, where it divides into <strong>superficial (cutaneous) <\/strong>and <strong>deep (motor) branches.<\/strong><\/li><\/ul><\/li><\/ol>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation.png\" target=\"_blank\" title=\"Brachial plexus\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"215\" src=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation-300x215.png\" alt=\"\" class=\"wp-image-4759\" srcset=\"https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation-300x215.png 300w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation-1024x733.png 1024w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation-768x550.png 768w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation-1536x1100.png 1536w, https:\/\/meddists.com\/learn\/wp-content\/uploads\/2021\/03\/upper-limb-innervation.png 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption><strong>Figure 4. Cutaneous innervation of the upper limb<\/strong> (showing the distribution of the branches of the brachial plexus and 2 additional nerves)<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n<\/span><span class=\"block-heading\" id=\"header_5\">\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" class=\"title_collection title1\">References<\/h3>\n<\/span><span class=\"block-content\" id=\"contents_5\">\n\n\n<ol class=\"wp-block-list\"><li>Fiac, Moore Keith MSc PhD Hon. DSc, et al.&nbsp;<em>Clinically Oriented Anatomy<\/em>. 8th ed., LWW, 2017.<\/li><li>Faaa, Drake Richard PhD, et al.&nbsp;<em>Gray\u2019s Anatomy for Students<\/em>. 4th ed., Elsevier, 2019.<\/li><li><strong>Figure 1. <\/strong>OpenStax, Anatomy and Physiology. CC BY-SA 4.0<\/li><li><strong>Figure 3.<\/strong> Dr. Sanjoy Sanyal and Dr. Stancu George, licensed under CC BY-SA 4.0<\/li><\/ol>\n<\/span><div id=\"the_titles\" style=\"display:none;\"><h3 class=\"wp-block-heading\" class=\"wp-block-heading\">Description<\/h3><h4 class=\"wp-block-heading\" class=\"wp-block-heading\">Terminal branches<\/h4><h3 class=\"wp-block-heading\" class=\"wp-block-heading\">Supraclavicular branches<\/h3><h3 class=\"wp-block-heading\" class=\"wp-block-heading\">Infraclavicular branches<\/h3><h3 class=\"wp-block-heading\" class=\"wp-block-heading\">References<\/h3><\/div>","protected":false},"excerpt":{"rendered":"<p>Description The brachial plexus originates in the neck, with its roots passing through the gap between the anterior and middle scalene muscles with the subclavian artery. It then extends laterally and inferiorly over the first rib to enter the axilla. It can be broken down into sections, similar to that of a tree. Roots Trunks [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3465,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3629","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Brachial plexus &#8211; Meddists<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/meddists.com\/learn\/pre-clinical\/anatomy\/upper-limb\/axilla\/brachial-plexus\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/\",\"name\":\"Brachial plexus &#8211; Meddists\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/meddists.com\\\/learn\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/brachial-plexus.png\",\"datePublished\":\"2021-01-07T23:15:09+00:00\",\"dateModified\":\"2021-12-11T17:25:16+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/meddists.com\\\/learn\\\/pre-clinical\\\/anatomy\\\/upper-limb\\\/axilla\\\/brachial-plexus\\\/#primaryimage\",\"url\":\"https:\\\/\\\/meddists.com\\\/learn\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/brachial-plexus.png\",\"contentUrl\":\"https:\\\/\\\/meddists.com\\\/learn\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/brachial-plexus.png\",\"width\":1009,\"height\":318,\"caption\":\"Figure 1. 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