Musculoskeletal Anatomy Quiz

1. Which muscle is not part of the rotator cuff?

2. A person plantarflexes and inverts the foot against resistance. Which muscle, whose tendon passes behind the medial malleolus, is performing both actions?

3. A complete rupture of the calcaneal tendon would most directly disrupt the shared insertion of which two major muscles?

4. A person holds a load with the elbow flexed and the forearm pronated. Which muscle remains a strong elbow flexor regardless of forearm position?

5. When a seated person straightens the knee against resistance, which muscle group provides the primary force?

6. Shoulder imaging shows irritation of a tendon running through the intertubercular groove of the humerus. Which structure is involved?

7. During resisted knee flexion, a tendon becomes prominent on the lateral side of the back of the knee. Which muscle does it belong to?

8. The carpometacarpal joint at the base of the thumb permits opposition through its distinctive articular shape. What type of synovial joint is it?

9. After a fracture at the surgical neck of the humerus, a person has impaired shoulder abduction and numbness over the lateral shoulder. Which nerve is most likely affected?

10. Which of these bones belongs to the axial skeleton?

11. A person has difficulty dorsiflexing the ankle, causing the forefoot to slap down while walking. Which muscle's impaired action most directly contributes to this problem?

12. Which structure forms the gel-like central region of an intervertebral disc?

13. A torn knee meniscus involves damage to which type of tissue?

14. Which bone directly articulates with the sternum and forms the only bony connection between the upper limb and the axial skeleton?

15. With the femur stabilized, which ligament primarily resists the tibia sliding anteriorly relative to the femur?

16. Which muscle typically initiates the first portion of shoulder abduction before the deltoid becomes the main mover?