Deep branch of the radial nerve
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| Nerve: Deep branch of the radial nerve | ||
|---|---|---|
| The suprascapular, axillary, and radial nerves. (Deep branch of radial labeled at right.) | ||
| The Supinator. (Deep branch of radial nerve labeled at right.) | ||
| Latin | n. interosseus dorsalis | |
| Gray's | subject #210 944 | |
| From | radial nerve | |
The deep branch of the radial nerve (dorsal or posterior interosseous nerve) winds to the back of the forearm around the lateral side of the radius between the two planes of fibers of the Supinator, and is prolonged downward between the superficial and deep layers of muscles, to the middle of the forearm.
Considerably diminished in size, it descends, as the dorsal interosseous nerve, on the interosseous membrane, in front of the Extensor pollicis longus, to the back of the carpus, where it presents a gangliform enlargement from which filaments are distributed to the ligaments and articulations of the carpus.
It supplies all the muscles on the radial side and dorsal surface of the forearm, excepting the Anconæus, Brachioradialis, and Extensor carpi radialis longus.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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