Head of radius

Head of radius
The radius and ulna of the left forearm, posterior surface. The top is proximal (elbow) and bottom is distal (wrist).
Details
Identifiers
Latin	caput radii
TA98	A02.4.05.002
TA2	1211
FMA	33773
Anatomical terms of bone [edit on Wikidata]

The head of the radius has a cylindrical form, and on its upper surface is a shallow cup or fovea for articulation with the capitulum of the humerus. The circumference of the head is smooth; it is broad medially where it articulates with the radial notch of the ulna, narrow in the rest of its extent, which is embraced by the annular ligament.^[1]