1. What are the three ligaments of the elbow?
2. What muscles originate at the medial epicondyle?
3. What muscles originate at the lateral epicondyle?
4. What is the normal amount of elbow valgus?
Answers:
1. Medial (ulnar) collateral ligament (key stabilizer of elbow), lateral (radial) collateral ligament, annular ligament.
2. Medial epicondyle: FCR, FCU, FDS, FDP, palmaris longus, pronator teres.
3. Lateral epicondyle: ECRL, ECRB, ECU, EDS, supinator, anconeus.
4. 5 deg in males, 10-15 deg in females, >20 deg is abnormal.
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