You searched for: “ulna
ulna (s), ulnae (pl)
1. The larger of the two long bones within the human forearm.

The smaller one is the radius. The ulna is on the same side of the arm as the little finger.

2. One of the bones that comprise the forearm.

The largest aspect articulates with the humerus at the elbow joint and the smallest portion of the ulna articulates with the carpal bones in the wrist.

3. The bone in the lower forelimb of vertebrate animals, roughly corresponding to the human ulna.
4. Etymology: inner bone of the forearm from Latin, literally, "elbow".
This entry is located in the following unit: ulno-, uln- + (page 1)