Assertion: ulna's surface | /r/HasAspect | muscle
Facets:
value: from above the horizontal ridge
type: LOCATION
Source sentences:
text: The back surface has muscles from above the horizontal ridge or spine (supraspinatus) and below the ridge (infraspinatus) converging on the cuff tendon which attaches to the top of the humerus at the greater tuberosity and thence backward and down.