ulna
Noun
Meaning
The postaxial bone of the forearm, or branchium, corresponding to the fibula of the hind limb. See Radius.
An ell; also, a yard.
Source: Webster's dictionarySynonyms
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Examples
For particularly heavy overhead lifts, a taped wrist enables the lifter to regulate wrist extension and delimit the translation of the radius and ulna distal heads.
Elephants are incapable of rotating their front legs, as the ulna and radius are fixed in pronation ; the "palm" of the manus faces backward.
The ulna and fibula are reduced in horses.
When holding a typical mouse, ulna and radius bones on the arm are crossed.