Leg Muscles Quiz

1. Which muscle group occupies most of the front of the thigh and is chiefly responsible for extending the knee?

2. Which quadriceps muscle can both extend the knee and assist with hip flexion because it crosses both joints?

3. Compared with the gastrocnemius, which calf muscle is emphasized during a seated calf raise because it does not cross the knee?

4. Which of these muscles is part of the hamstring group?

5. When a fully extended knee begins to bend, which small posterior knee muscle helps initiate the movement by “unlocking” the joint?

6. Which superficial calf muscle has two heads, crosses both the knee and ankle, and helps point the foot downward?

7. A muscle on the outer side of the lower leg contracts to turn the sole outward. Which muscle best matches that description?

8. During a cable exercise, you pull your thigh inward toward the body’s midline. Which muscle is most directly associated with this action?

9. A person has difficulty lifting the front of the foot while walking. Which primary dorsiflexor would commonly be tested?

10. Which long, strap-like thigh muscle helps flex both the hip and knee while also moving the thigh outward?

11. While descending stairs, which muscle group works eccentrically to control the knee as it bends under body weight?

12. Which quadriceps muscle forms the medial portion of the anterior thigh just above the knee?

13. A movement combines turning the sole inward with pointing the foot downward. Which muscle is a prime contributor to both actions?

14. An Achilles tendon injury would most directly weaken which ankle movement?

15. Which deep muscle of the lower leg bends the big toe and assists with pointing the foot downward?

16. A runner feels a strain in the posterolateral thigh. Which hamstring muscle is located in that region?