Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
10: Two cases of division of the radial high in the arm
demonstrate the distribution of the lower lateral cutaneous nerve,
i.e., over the dorsum of the thumb and a strip over the dorsum of the
third metacarpal which is continuous with the area of the skin
supplied in the forearm. Stopford suggested that the above
description holds in 50% of hands.
11: Usual area of supply of the musculocutaneous nerve in the forearm, i.e., a strip of skin on both aspects of the radial border of the forearm as far distally as the lower end of the radius.
12: In a few cases, the musculocutaneous nerve (lateral antebrachial cutaneous nerve) was found supplying the lateral pan of the thenar eminence and the dorsal surface of the first metacarpal and the first interosseous space.
13: In two cases the radial (lower lateral cutaneous nerve) had been severed; in another case there was division of the superficial radial nerve as well as the musculocutaneous, and the resultant anesthesia was similar to that shown in this figure.
Redrawn from Stopford, J.S.B The variation in distribution of the cutaneous nerves of the hands and digits. J Anat 53:14-25, 1919.Section Top | Title Page
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