English Explanatory Dictionary

proximal ulna

English dictionary entry

Meanings

noun
  1. The upper end of the ulna bone, located at the elbow, forming the bony point (olecranon) and a large notch (trochlear notch) that fits with the upper arm bone (humerus) to create the stable hinge of the elbow joint, allowing arm bending and straightening.

Word forms

proximal ulna proximal ulnas
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