Anterior compartment of the arm

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Anterior compartment of the arm
Cross-section through the middle of upper arm.
Artery brachial artery
Nerve musculocutaneous nerve

The anterior compartment of the arm is known as the "flexor compartment" as flexion is its main action.

The muscles contained therein are the biceps brachii, brachialis, and coracobrachialis.

They are all supplied by the musculocutaneous nerve, which arises from the fifth, sixth, and seventh cervical spinal nerves (see Brachial plexus).

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v • d • e
General anatomy of upper limbs
Arm:

Clavipectoral triangle - Quadrangular space - Triangular space - Triangular interval - Axilla - Axillary sheath - Anterior axillary fold - Brachial fascia - Pectoral fascia - Axillary fascia - Fascial compartments of arm (Anterior, Posterior) - Lateral intermuscular septum - Medial intermuscular septum - Bicipital aponeurosis

Forearm: Cubital fossa - Interosseous membrane of the forearm - Posterior compartment of the forearm - Anterior compartment of the forearm - Antebrachial fascia - Carpal tunnel - Common extensor tendon - Common flexor tendon

Hand: Palmar aponeurosis - Finger - Extensor retinaculum of the hand - Flexor retinaculum of the hand - Anatomical snuff box - Extensor expansion
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