Assertion: elbow's joint | /r/SimilarTo | ball-and-socket joints
Facets:
value: very
type: DEGREE
value: without rotation
type: OTHER
Source sentences:
text: These joints are similar to ball-and-socket joints, just without the socket (the "ball" simply rests against another bone end).
text: This joint is very similar to the ball and socket joint but without rotation.