Not TRUE about Iliotibial tract
**Core Concept**
The iliotibial tract (ITT) is a fibrous band that runs down the lateral aspect of the thigh, extending from the iliac crest to the lateral condyle of the tibia. It plays a crucial role in knee stability and assists in hip abduction.
**Why the Correct Answer is Right**
The ITT is a thickened fascial layer of the tensor fasciae latae muscle, which is innervated by the superior gluteal nerve. The ITT helps to reduce friction between the lateral femoral condyle and the lateral tibial plateau during knee extension and flexion. This fibrous band is also a common site for overuse injuries, such as iliotibial band syndrome.
**Why Each Wrong Option is Incorrect**
**Option A:** The ITT is a muscle. Incorrect, as the ITT is a fibrous band, not a muscle.
**Option B:** The ITT is a ligament. Incorrect, as the ITT is a fascial layer, not a ligament.
**Option C:** The ITT is innervated by the obturator nerve. Incorrect, as the ITT is innervated by the superior gluteal nerve.
**Clinical Pearl / High-Yield Fact**
The ITT is a common site for overuse injuries, especially in runners and cyclists, due to repetitive friction between the lateral femoral condyle and the lateral tibial plateau.
**Correct Answer:** Not provided in the question. Please provide the options for the question.