humeroulnar joint is the anatomical name for the joint in the elbow from the head of the radius to the capitulum of the humerus.
humeroulnar joint is the anatomical name for the joint in the elbow from the head of the radius to the capitulum of the humerus.
what is the anatomical name for the joint in the elbow from the head of the radius to the capitulum of the humerus?
humeroulnar joint
head of radius









































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.









































section::::articular surfaces.









































the head of the radius is shaped to articulate with a complex of articular surfaces during both flexion-extension at the elbow and supination-pronation in the forearm:









































section::::articular surfaces.:humeroradial joint.
head of radius
the capitulum does not extend to the posterior side of the humerus and, consequently, during full elbow extension only the anterior half of the head articulates with the capitulum. in full flexion the head similarly reaches beyond the capitulum to enter the shallow radial fossa on the anterior side of the humerus.









































section::::articular surfaces.:proximal radioulnar joint.









































the head is cylindrical to allow axial rotation of the radius, thus to articulate with the annular ligament and the radial notch on the ulna.
head of radius