Description
The nerve supply for the forearm can be divided into superficial (or cutaneous) and deep innervation. Cutaneous innervation comprises the following nerves:
—lateral cutaneous nerve of the forearm (C5, C6), which innervates skin of the lateral side of the forearm to the proximal thumb;
—medial cutaneous nerve of the forearm (C8, T1), which innervates the skin of the medial side of the forearm;
—posterior cutaneous nerve of the forearm (C8, T1), which innervates the skin of the back of the forearm.
The deep innervation of the forearm comprises the following nerves:
—median nerve, which gives off motor branches to most of the flexor muscles of the forearm;
—ulnar nerve, which provides motor innervation to medial flexor digitorum profundus and flexor carpi ulnaris muscles;
—radial nerve, which innervates the extensor muscles of the forearm.
Related parts of the anatomy
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Vessels and nerves of the forearm: Video & Anatomy
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