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Tensor fasciae latae

Other Terms: Tensor of fascia lata, Musculus tensor fasciae latae, Muscle tenseur du fascia lata

Muscle parts

None

Latin name

Musculus tensor fasciae latae

Latin muscle parts

None

Group

Hip joint muscle – gluteal group

Etymology

The English name for this muscle is the muscle that stretches the band on the side. The word tensor comes from the Latin verb tendere meaning “to stretch.” Fascia is the Latin term for “band.” The word latae is the genitive form of the Latin word lata meaning “side.”

Origin

Outer lip of the anterior iliac crest; lateral aspect of the anterior superior iliac spine; underside of the iliotibial tract.

Insertion

Descends between the two layers of the iliotibial tract and attaches to them (typically ends in the upper third of the thigh, but can extend to the level of the femoral condyles).

Action

Medial rotation and flexion of the hip; assists weakly with extension of the knee; lateral rotation of the leg at the knee; stabilizes the hip and the knee during standing.

Nerve supply

Superior gluteal nerve (L4, L5, and S1)

Blood supply

The superior and inferior gluteal arteries carry blood from the internal iliac artery to the muscle, while the superficial circumflex iliac artery delivers blood from the femoral artery.

Latin

Musculus tensor fasciae latae

French

Muscle tenseur du fascia lata

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