ulna(redirected from ulnae)
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upper limb in humans. Three long bones form the framework of the arm: the humerus of the upper arm, and the radius (outer bone) and ulna (inner bone) of the forearm.
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The larger of the two bones of the forearm or forelimb in vertebrates; articulates proximally with the humerus and radius and distally with the radius.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
1. the inner and longer of the two bones of the human forearm
2. the corresponding bone in other vertebrates
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005