Acromion

Changed by Owen Kang, 21 May 2017

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The acromion, also known as the acromial process, is a small section of the scapula that extends anteriorly from the ~~spinous process~~spine of the scapula.

Gross anatomy

It forms the acromioclavicular joint with the lateral third of the clavicle, and also connects with the coracoid process via the coraco-acromial ligament.

Attachments

Musculotendinous

mid portion of deltoid muscle originates from the acromion ¹

Ligamentous

acromioclavicular ligament ~~attaching then~~attaches to the clavicle
coracoacromial ligament ~~attaching then~~attaches to the coracoid

Relations

Blood supply

primary nutrient branch of the subscapular artery and suprascapular arteries ²

Variant anatomy

There are three classifications of the acromion that can be labelled using the inferior surface shape of the acromion ¹

type 1: flat acromion
type 2: curved acromion
type 3: hooked acromion

Related pathology

acromioclavicular joint injury

-<p>The <strong>acromion, </strong>also known as the <strong>acromial process</strong>, is a small section of the <a href="/articles/scapula">scapula</a> that extends anteriorly from the spinous process. </p><h4>Gross anatomy</h4><p>It forms the <a href="/articles/acromioclavicular-joint-1">acromioclavicular joint</a> with the lateral third of the <a title="clavicle" href="/articles/clavicle">clavicle</a>, and also connects with the coracoid process via the <a href="/articles/coracoacromial-ligament">coraco-acromial ligament</a>.</p><h5>Attachments</h5><h6><strong>Musculotendinous</strong></h6><ul><li>mid portion of <a href="/articles/deltoid-muscle">deltoid muscle</a> originates from the acromion <sup>1</sup>
~~-</li></ul><p><strong>Ligamentous</strong></p><ul>~~
~~-<li>acromioclavicular ligament attaching then to the clavicle</li>~~
+<p>The <strong>acromion, </strong>also known as the <strong>acromial process</strong>, is a small section of the <a href="/articles/scapula">scapula</a> that extends anteriorly from the spine of the scapula. </p><h4>Gross anatomy</h4><p>It forms the <a href="/articles/acromioclavicular-joint-1">acromioclavicular joint</a> with the lateral third of the <a href="/articles/clavicle">clavicle</a>, and also connects with the coracoid process via the <a href="/articles/coracoacromial-ligament">coraco-acromial ligament</a>.</p><h5>Attachments</h5><h6>Musculotendinous</h6><ul><li>mid portion of <a href="/articles/deltoid-muscle">deltoid muscle</a> originates from the acromion <sup>1</sup>
+</li></ul><h6>Ligamentous</h6><ul>
+<li>acromioclavicular ligament attaches to the clavicle</li>
~~-<a href="/articles/coracoacromial-ligament">coracoacromial ligament</a> attaching then to the <a href="/articles/conoid-tubercle">coracoid</a>~~
+<a href="/articles/coracoacromial-ligament">coracoacromial ligament</a> attaches to the <a href="/articles/conoid-tubercle">coracoid</a>
~~-<li><a title="acromioclavicular ligament" href="/articles/acromioclavicular-ligament">acromioclavicular ligament</a></li>~~
+<li><a href="/articles/acromioclavicular-ligament">acromioclavicular ligament</a></li>
-</ul><h4>Blood supply</h4><ul><li>primary nutrient branch of the <a href="/articles/subscapular-artery">subscapular artery</a> and <a title="Suprascapular artery" href="/articles/suprascapular-artery">suprascapular arteries</a> <sup>2</sup>
+</ul><h4>Blood supply</h4><ul><li>primary nutrient branch of the <a href="/articles/subscapular-artery">subscapular artery</a> and <a href="/articles/suprascapular-artery">suprascapular arteries</a> <sup>2</sup>