Assertion: ulna's surface | /r/HasProperty | broad
Facets:
Source sentences:
text: The dorsal surface ( facies dorsalis; posterior surface ) directed backward and lateralward, is broad and concave above; convex and somewhat narrower in the middle; narrow, smooth, and rounded below.
text: The medial surface (facies medialis; internal surface) is broad and concave above, narrow and convex below.