Assertion: shoulder's joint | /r/MadeOf | articulation
Facets:
value: with the ulna
type: OTHER
Source sentences:
text: The atlanto-occipital joint is formed by the articulations between the superior articular processes of the atlas and the occipital condyles on the base of the skull.
text: The proximal radioulnar joint is a pivot joint formed by the head of the radius and its articulation with the ulna.