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Tensor fascia major
Last reviewed: 07.07.2025
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The tensor fasciae latae originates on the anterior superior iliac spine and the adjacent part of the iliac crest. The muscle is located between the superficial and deep plates of the fascia lata. At the level of the border between the upper and middle thirds of the thigh, the muscle passes into the iliotibial tract of the fascia lata (tractus iliotibialis), which continues downward and attaches to the lateral condyle of the tibia.
Function of the tensor fasciae lata: stretches the fasciae lata (iliotibial tract), helps strengthen the knee joint in the extended position; flexes the hip.
Innervation of the tensor fasciae latae: superior gluteal nerve (LIV-SI).
Blood supply of the tensor fasciae lata: superior gluteal artery, lateral circumflex femoral artery.
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