Elbow
Posterior border of the ulna
Margo posterior ulnae
- How to find it
- From the olecranon a sharp ridge runs along the whole back of the forearm to the ulnar styloid. It lies subcutaneously and can be traced along its full length.
- What you use it for
- The divide between the flexor and extensor compartments of the forearm, and the reference for judging the position of radius and ulna in a fracture.
- On the bone
- Ulna
- Body region
- Elbow