diaphysis of ulna

http://purl.obolibrary.org/obo/UBERON_0001010

The body of the ulna at its upper part is prismatic in form, and curved so as to be convex behind and lateralward; its central part is straight; its lower part is rounded, smooth, and bent a little lateralward. It tapers gradually from above downward, and has three borders and three surfaces. [ http://en.wikipedia.org/wiki/Body_of_ulna ]

Synonyms: body of ulna, corpus ulnae, shaft of ulna, ulnar diaphysis