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Encyclopedia > Anterior compartment of the arm
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. Image File history File links Gray413. ... Section of an artery For other uses, see Artery (disambiguation). ... The brachial artery is a blood vessel of the upper arm. ... Nerves (yellow) Nerves redirects here. ... The major end branch of the lateral cord, courses inferiorly within the anterior arm, supplying motor fibers to the arm muscles that flex the forearm (the biceps brachii and brachialis). ... In anatomy, Flexion is movement whereby bones or other objects are brought closer together. ...


The muscles contained therein are the biceps brachii, brachialis, and coracobrachialis. A person flexing his biceps brachii In human anatomy, the biceps brachii is a muscle on the upper arm that acts to flex the elbow. ... Brachialis is a flexor muscle in the upper arm. ... Coracobrachialis is one of the three muscles that attach to the coracoid process of the scapula. ...


They are all supplied by the musculocutaneous nerve, which arises from the fifth, sixth, and seventh cervical spinal nerves (see Brachial plexus). The major end branch of the lateral cord, courses inferiorly within the anterior arm, supplying motor fibers to the arm muscles that flex the forearm (the biceps brachii and brachialis). ... The term spinal nerve generally refers to the mixed spinal nerve, which is formed from the dorsal and ventral roots that come out of the spinal cord. ... The brachial plexus is an arrangement of nerve fibres (a plexus) running from the spine (vertebrae C5-T1), through the neck, the axilla (armpit region), and into the arm. ...


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