Radial styloid process
| Radial styloid process | |
|---|---|
 Bones of left forearm. Anterior aspect. (Styloid process of radius labeled at bottom right.) | |
 Human arm bones diagram | |
| Details | |
| Identifiers | |
| Latin | processus styloideus radii |
| Dorlands /Elsevier | p_34/12667668 |
| TA | A02.4.05.015 |
| FMA | 23524 |
The radial styloid process is a projection of bone on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base, and the radial collateral ligament of the wrist attaches at its apex. The lateral surface is marked by a flat groove for the tendons of the abductor pollicis longus and extensor pollicis brevis.
Breakage of the radius at the radial styloid is known as a Chauffeur's fracture; it is typically caused by compression of the scaphoid bone of the hand against the styloid.
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
- Anatomy image: skel/hand2 at Human Anatomy Lecture (Biology 129), Pennsylvania State University
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