Assertion: ulna | /r/CapableOf | articulate with the head of the radius
Facets:
value: to form the proximal radioulnar joint
type: PURPOSE
Source sentences:
text: Other significant anatomical features of this bone include the semilunar notch, which is the crescent-shaped cavity between the olecranon and coronoid processes into which the end of the humerus inserts to form the elbow joint; and the radial notch, a concave surface on the lateral side of the ulna that articulates with the head of the radius to form the proximal radioulnar joint.