|Bone: Radial styloid process|
|Bones of left forearm. Anterior aspect. (Styloid process of radius labeled at bottom right.)|
|Human arm bones diagram|
|Latin||processus styloideus radii|
|Gray's||subject #53 220|
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.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
|Pectoral girdle, clavicle|