Reference > Anatomy of the Human Body > Page 936
the arm it supplies the Coracobrachialis, Biceps brachii, and the greater part of the Brachialis. The branch to the Coracobrachialis is given off from the nerve close to its origin, and in some instances as a separate filament from the lateral cord of the plexus; it is derived from the seventh, cervical nerve. The branches to the Biceps brachii and Brachialis are given off after the musculocutaneous has pierced the Coracobrachialis; that supplying the Brachialis gives a filament to the elbow-joint. The nerve also sends a small branch to the bone, which enters the nutrient foramen with the accompanying artery.
Henry Gray (1825–1861).  Anatomy of the Human Body.  1918.

FIG. 813– Cutaneous nerves of right upper extremity. Posterior view. (See enlarged image)

FIG. 814– Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. Posterior view. (See enlarged image)

  The lateral antibrachial cutaneous nerve (n. cutaneus antibrachii cutaneous lateralis; branch of musculocutaneous nerve) passes behind the cephalic vein, and divides, opposite the elbow-joint, into a volar and a dorsal branch (Figs. 811, 813).


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