Unit 3 Muslces of the Anterior Arm Compartment

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Last updated 7:55 AM on 10/9/26
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4 Terms

1
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Biceps brachii m.

Joints crossed: Glenohumeral Shoulder, Elbow


Innervation: Musculocutaneous nerve


Action:

Flex forearm (elbow) when forearm is in supinated position

Supinates forearm (radioulnar)

Slight arm flexion (shoulder)



2
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Coracobrachialis m.

Joints crossed: Glenohumeral Shoulder


Innervation: Musculocutaneous nerve


Action:

Flex arm (shoulder),

Adducts arm (shoulder)



3
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Brachialis m.

Joints crossed: Elbow


Innervation: Musculocutaneous nerve


Action:

Flex forearm (elbow)



4
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What are the actions of the muscles in this compartment?

Major Flexors