Ulna Anatomy

Anatomy of the Ulna
The ulna is the longer of the two bones located in the forearm, and lies on the little finger side of the arm.  The upper end of the ulna articulates with the humerus creating a hinge joint at the elbow.  The ulna also articulates with the radius at the elbow, and joins with the radius at its lower end which is in the vicinity of the wrist, although it does not play a role in the wrist joint.

Related Injuries
- Ulnar Fracture

Related Surgeries
- Ulna Fracture Repair

Referenced Material
Anatomica’s Body Atlas. (2002). San Diego, CA: Thunder Bay Press (pg. 109)