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Laboratory 6. Arm
Step 3. Cutaneous Nerves of the Arm and Forearm

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The posterior brachial cutaneous nerves are branches of the radial nerve. They are located on the posterior aspect of the arm.

The posterior antebrachial cutaneous nerve, also called the posterior cutaneous nerve of the forearm, is a branch of the radial nerve. It is located on the posterior aspect of the forearm.

The lateral antebrachial cutaneous nerve, also called the lateral cutaneous nerve of the forearm is a distal branch of the musculocutaneous nerve. It is located on the lateral aspect of the forearm.

Links and References:
Grant's: 6.10 and 6.11
Netter (1ed.):452 and 453 (2ed.):448 and 449
Rohen/Yokochi: 378, 393, and 398