**Core Concept**
The superior gluteal nerve is a branch of the lumbosacral plexus that innervates the gluteus medius, gluteus minimus, and tensor fasciae latae muscles. These muscles are primarily involved in hip abduction and external rotation.

**Why the Correct Answer is Right**
The superior gluteal nerve is responsible for innervating the gluteus medius, gluteus minimus, and tensor fasciae latae muscles. These muscles work together to abduct the hip and provide stability to the pelvis during weight-bearing activities. The gluteus medius and minimus muscles also contribute to internal rotation of the hip joint. The superior gluteal nerve does not innervate the gluteus maximus muscle, which is primarily responsible for hip extension and external rotation.

**Why Each Wrong Option is Incorrect**
**Option A:** The gluteus medius muscle is indeed innervated by the superior gluteal nerve, making this option incorrect.
**Option B:** The tensor fasciae latae muscle is also innervated by the superior gluteal nerve, making this option incorrect.
**Option C:** The gluteus minimus muscle is another muscle innervated by the superior gluteal nerve, making this option incorrect.

**Clinical Pearl / High-Yield Fact**
The superior gluteal nerve is often injured during procedures such as hip arthroscopy or pelvic surgery, leading to weakness and atrophy of the gluteus medius and minimus muscles.

**Correct Answer: D. Gluteus Maximus**