Questions: Lecture Ch 13 HW: The Peripheral Nervous System Multiple Choice Question 13.31 Part A Which muscle or muscle group is served by the femoral nerve? gastrocnemius hamstring group quadriceps femoris group gluteus maximus

The answer is the third one (or C): quadriceps femoris group.

Explanation for each option:

• Gastrocnemius: This muscle is located in the calf and is primarily innervated by the tibial nerve, not the femoral nerve.
• Hamstring group: The hamstring muscles are located at the back of the thigh and are primarily innervated by the sciatic nerve, not the femoral nerve.
• Quadriceps femoris group: This group of muscles is located at the front of the thigh and is innervated by the femoral nerve. The quadriceps femoris group includes the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius muscles.
• Gluteus maximus: This muscle is located in the buttocks and is primarily innervated by the inferior gluteal nerve, not the femoral nerve.

Summary: The femoral nerve serves the quadriceps femoris group, which is responsible for extending the knee.