Head of radius
It consists of two articular areas:
- Articular circumference of head of radius
- Articular facet of head of radius
The articular circumference of the head of the radius is the round perimeter of the cylindrical head of the radius. Its medial aspect articulates with the radial notch of the ulna, forming the proximal radioulnar joint. The lateral, anterior and posterior aspects of the articular circumference is surrounded by the annular ligament of the radius.
The proximal radioulnar and humeroradial joints contribute to the formation of the elbow joint.
English: Head of radius
Latin: Caput radii
|Definition||Disc shaped, expanded portion of proximal part of radius|
|Function||Contributes to formation of proximal radioulnar joint and humeroradial joint of elbow|
Learn more about the bony landmarks of the radius in the study unit below.
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