Coracobrachialis

Joe Muscolino

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Anterior view of the right coracobrachialis. The deltoid and cut pectoralis minor are ghosted in. Permission Joseph E. Muscolino.

ATTACHMENTS:

  • The coracobrachialis attaches from the coracoid process of the scapula to the middle 1/3 of the medial shaft of the humerus.

 

ACTIONS:

  • Flexes the arm at the glenohumeral joint
  • Adducts the arm at the glenohumeral joint
  • Horizontally flexes the arm at the glenohumeral joint

 

TRIVIA NOTE:

  • The coracobrachialis is one of three muscles that attach to the coracoid process of the scapula. The other two are the pectoralis minor and the short head of the biceps brachii.