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Tailor muscle

Alexey Kryvenko, medical expert
Last reviewed: 07.07.2025

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The sartorius muscle (m.sartorius) originates on the superior anterior iliac spine. The muscle crosses obliquely from top to bottom and medially the anterior surface of the thigh. It is attached, passing into a tendinous extension, to the tuberosity of the tibia and to the fascia of the leg.

At the point of attachment, the tendon of the sartorius muscle fuses with the tendons of the gracilis and semitendinosus muscles and forms a triangular-shaped fibrous plate, the so-called superficial goose foot (pes ansennus superficialis), under which there is a goose foot bursa (bursa anserina).

Function of the sartorius muscle: flexes the thigh and lower leg, also participates in the outward rotation of the thigh.

Innervation of the sartorius muscle: femoral nerve (LII-LIV).

Blood supply of the sartorius muscle: muscular branches of the femoral artery, lateral circumflex femoral artery, descending genicular artery.