The gluteus maximus is supplied by which nerve?

The gluteus maximus is supplied by which nerve?

• A. inferior gluteal nerve
• B. superior gluteal nerve
• C. nerve to piriformis
• D. obturator nerve

Answer: (A)

The nerve that supplies gluteus maximus is the inferior gluteal nerve. It arises from the sacral plexus (L5–S2) and exits the pelvis through the greater sciatic foramen below the piriformis to reach the gluteal region, where it innervates gluteus maximus. This muscle is a powerful hip extensor and external rotator, especially during rising from a chair, climbing stairs, or running. The superior gluteal nerve, by contrast, supplies gluteus medius and minimus (and tensor fasciae latae), not gluteus maximus; the nerve to piriformis supplies piriformis; the obturator nerve supplies thigh adductors.

The nerve that supplies gluteus maximus is the inferior gluteal nerve. It arises from the sacral plexus (L5–S2) and exits the pelvis through the greater sciatic foramen below the piriformis to reach the gluteal region, where it innervates gluteus maximus. This muscle is a powerful hip extensor and external rotator, especially during rising from a chair, climbing stairs, or running. The superior gluteal nerve, by contrast, supplies gluteus medius and minimus (and tensor fasciae latae), not gluteus maximus; the nerve to piriformis supplies piriformis; the obturator nerve supplies thigh adductors.