Tensor fasciae latae

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Tensor fasciae latae
The tensor fasciae latae and nearby muscles
The left femoral triangle.
Latin musculus tensor fasciae latae
Gray's subject #128 476
Origin: iliac crest
Insertion: iliotibial tract
Artery: primarily lateral circumflex femoral artery, Superior gluteal artery
Nerve: Superior gluteal nerve (L4-L5)
Action: Thigh - flexion, medial rotation. Trunk stabilization.
Dorlands/Elsevier m_22/12551088

The tensor fasciae latae is a muscle of the thigh.

Origin and insertion

It arises from the anterior part of the outer lip of the iliac crest; from the outer surface of the anterior superior iliac spine, and part of the outer border of the notch below it, between the gluteus medius and sartorius; and from the deep surface of the fascia lata.

It is inserted between the two layers of the iliotibial band of the fascia lata about the junction of the middle and upper thirds of the thigh.


The Tensor fasciæ latæ is a tensor of the fascia lata; continuing its action, the oblique direction of its fibers enables it to abduct the thigh and to rotate it inward.

In the erect posture, acting from below, it will serve to steady the pelvis upon the head of the femur; and by means of the iliotibial band it steadies the condyles of the femur on the articular surfaces of the tibia, and assists the Glutæus maximus in supporting the knee in the extended position.

Additional images

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

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