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
14. In 14 of 20 patients, after the division of both nerves,
the residual area of normal skin extended medially as far as the
third interosseous space.
15: in 6 of the same 20 patients, it was less extensive and only reached, on the uInar side, the second interspace or the middle of the third metacarpal bone.
16: Dissection specimen of the superficial radial nerve (corresponds to Figure 62, A, lower right, which resulted from severance of the same nerve).
17: In conclusion (Figures 60-64), the skin of the hand may be supplied with cutaneous branches from four sources (excluding the distribution of the median nerve), and the most frequent combinations are represented in this figure.LEC, Lower lateral cutaneous nerve from the radial nerve; MC, musculocutaneous nerve (lateral antebrachial cutaneous nerve); R, superficial radial nerve; U, uInar nerve.
18: In this specimen the radial (superficial radial nerve) supplied almost the entire dorsum of the hand. The uInar nerve supplied one-half of the distal phalanx of the fifth digit, the median nerve supplied the medial half of the distal phalanx of the ring finger and the distal phalanx of the middle finger and the medial side of the distal phalanx of the index finger. On the lateral side of the hand, the lateral cutaneous nerve of the musculocutaneous nerve and the superficial radial nerve made a minor contribution.
Redrawn (A-D) from Stopford, J.S.B. The variation in distribution of the cutaneous nerves of the hand and digits. J. Anat. 53:14-25, 1919; and (E) from Learmonth, J.R. A variation in the distribution of the radial branch of the musculospiral nerve. J. Anat. 53:371-372, 1919.
Section Top | Title Page
Please send us comments by filling out our Comment Form.
All contents copyright © 1995-2024 the Author(s) and Michael P. D'Alessandro, M.D. All rights reserved.
"Anatomy Atlases", the Anatomy Atlases logo, and "A digital library of anatomy information" are all Trademarks of Michael P. D'Alessandro, M.D.
Anatomy Atlases is funded in whole by Michael P. D'Alessandro, M.D. Advertising is not accepted.
Your personal information remains confidential and is not sold, leased, or given to any third party be they reliable or not.
The information contained in Anatomy Atlases is not a substitute for the medical care and advice of your physician. There may be variations in treatment that your physician may recommend based on individual facts and circumstances.
URL: http://www.anatomyatlases.org/