Definition of ulna in English:
noun (plural ulnae /-ˌnē, -ˌnī/ or ulnas)
1The thinner and longer of the two bones in the human forearm, on the side opposite to the thumb. Compare with radius (sense 2).
- All three heads run into a common tendon that crosses the elbow joint and inserts on the olecranon process on the ulna bone in the Forearm.
- The ulna styloid process was readily identifiable in all children, and its identification was not limited by wrist contracture.
- It may also join the supinator, the tendon of pronator teres, or the ulna.
1.1The corresponding bone in a quadruped’s foreleg or a bird’s wing.
- All were made from the ulna - a wing bone - of the red-crowned crane.
- They had been crafted from the ulnae (wing bones) of the red-crowned crane (Grus japonensis Millen) and had between five and eight finger-holes.
- In the equid foreleg, radius and ulna are united, and the ulna is greatly reduced so that all weight is born on the radius.
- Example sentences
- My self diagnosis is that I have ulnar nerve damage.
- The former North Shore Twins player had a bone chip and a torn ulnar collateral ligament repaired in his right elbow.
- He fell on his left elbow and severed his ulnar nerve, which meant he lost the use of his left hand, and an operation to repair the problem failed.
Definition of ulna in:
- British & World English dictionary