Written by Oliver Jones

Last updated October 5, 2022 • 3 Revisions •

The coracobrachialis is a muscle in the anterior compartment of the upper arm.

  • Attachments: Originates from the coracoid process of the scapula. The muscle passes through the axilla and attaches the medial aspect of the humerus shaft (at the level of the deltoid tubercle).
  • Function: Flexion of the arm at the shoulder. It is also a weak adductor at the shoulder.
  • Innervation: Musculocutaneous nerve.
  • Blood supply: Brachial artery.

Fig 1
The coracobrachialis, biceps brachii and brachialis muscles of the anterior upper arm.

Premium Feature

3D Model

Premium Feature
Access this feature with premium.
Go Premium