Ulnar Collateral Ligament

1-Collateral means it is formed of three parts.

2-The first part is anterior bundle of ulnar collateral ligament which arises from medial epicondial and inserted in ulnar aspect of coronoid process.

3-Posterior bundle of ulnar collateral ligament which arises from medial epicondyle of humerus and inserted in also outer surface of coronoid.

4-Transverse bundle (not seen by MRI).

Anterior bundle

5-Anterior bundle is longer than the posterior bundle.