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Coracobrachialis muscle

Synonym: coracobrachial muscle
From Latin: corax - raven; brachium - arm
German: Musculus coracobrachialis

1 Definition

The coracobrachialis muscle is a muscle of the ventral group of the shoulder muscles.

2 Devolution

It has its origin at the coracoid process of the scapula. Its insertion lies at the medial anterior surface (Facies anterior medialis) of the humerus shaft in the distal elongation of the crest of the lesser tubercle.

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3 Innervation

The innervation is provided by the musculocutaneous nerve from the lateral cord of the brachial plexus (segments: C5-C7).

4 Function

The coracobrachialis muscle causes an internal rotation, adduction and anteversion of the upper arm.

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