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Encyclopedia > Acromion

The acromion process, or simply the acromion, is an anatomical feature on the scapula.

It is a continuation of the scapular spine, and hooks over anteriorly. The acromion articulates with the clavicle to form the acromioclavicular joint.

The acromion process of bats (Mammalia: Chiroptera) is particularly elongated compared to that of humans.

  Results from FactBites:
Arthroscopic Acromioplasty / Cuff Debridement - Wheeless' Textbook of Orthopaedics (1600 words)
- the entire undersurface of the antero-lateral acromion is cleared of soft tissue using intra-articular cautery inorder to limit bleeding;
- once the bursal tissue is removed from the undersurface of the acromion, cautery is then used to remove bursal tissue and the deltoid
- ideally, the portion of the acromion which extends anterior to the anterior edge of the clavicle should be removed (this is often about
II. Osteology. 6a. 2. The Scapula (Shoulder Blade). Gray, Henry. 1918. Anatomy of the Human Body. (1934 words)
At birth, a large part of the scapula is osseous, but the glenoid cavity, the coracoid process, the acromion, the vertebral border, and the inferior angle are cartilaginous.
The base of the acromion is formed by an extension from the spine; the two separate nuclei of the acromion unite, and then join with the extension from the spine.
Failure of bony union between the acromion and spine sometimes occurs, the junction being effected by fibrous tissue, or by an imperfect articulation; in some cases of supposed fracture of the acromion with ligamentous union, it is probable that the detached segment was never united to the rest of the bone.
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