Lower limb test 1

Lower limb test 1

1. What is the largest bone in the human body?

 A) Tibia
 B) Femur
 C) Fibula
 Answer: B) Femur
 Explanation: The femur is the longest and largest bone, located in the thigh, supporting
body weight and enabling leg movement.

2. Which muscle is responsible for extending the knee?

 A) Quadriceps
 B) Hamstrings
 C) Gluteus Maximus
 Answer: A) Quadriceps
 Explanation: The quadriceps muscle group on the front of the thigh is primarily
responsible for knee extension.

3. What bone articulates with the femur at the knee?

 A) Tibia
 B) Fibula
 C) Talus
 Answer: A) Tibia
 Explanation: The tibia (shin bone) directly connects with the femur to form the knee
joint.

4. Which muscle is responsible for dorsiflexion at the ankle?

 A) Soleus
 B) Tibialis Anterior
 C) Gastrocnemius
 Answer: B) Tibialis Anterior
 Explanation: The tibialis anterior muscle, located on the front of the lower leg, pulls the
foot upwards (dorsiflexion).

5. What is the primary function of the hamstrings?

 A) Knee extension
 B) Knee flexion
 C) Hip adduction
 Answer: B) Knee flexion
 Explanation: The hamstrings, located on the back of the thigh, are responsible for
bending (flexing) the knee.

, 6. Which nerve innervates the quadriceps muscle group?

 A) Sciatic nerve
 B) Femoral nerve
 C) Tibial nerve
 Answer: B) Femoral nerve
 Explanation: The femoral nerve, located in the anterior thigh, controls the quadriceps
muscles for knee extension.

7. What is the function of the gluteus maximus?

 A) Hip extension
 B) Hip abduction
 C) Knee flexion
 Answer: A) Hip extension
 Explanation: The gluteus maximus is the primary extensor of the hip, allowing the thigh
to move backward.

8. What is the bony prominence on the lateral side of the ankle?

 A) Medial malleolus
 B) Lateral malleolus
 C) Calcaneus
 Answer: B) Lateral malleolus
 Explanation: The lateral malleolus, part of the fibula, forms the outer ankle bump.

9. Which structure stabilizes the knee by preventing forward movement of the
tibia?

 A) Anterior cruciate ligament (ACL)
 B) Posterior cruciate ligament (PCL)
 C) Medial collateral ligament (MCL)
 Answer: A) Anterior cruciate ligament (ACL)
 Explanation: The ACL restricts forward sliding of the tibia relative to the femur,
stabilizing the knee.

10. Which muscle is responsible for plantar flexion?

 A) Tibialis Anterior
 B) Gastrocnemius
 C) Quadriceps
 Answer: B) Gastrocnemius
 Explanation: The gastrocnemius, part of the calf, enables pushing the foot down (plantar
flexion).