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superficial anterior thigh muscle; origin, anterior superior spine of ilium; insertion, medial border of tuberosity of tibia; action, flexes thigh and leg, rotates leg medially and thigh laterally; nerve supply, femoral.
n. pl. sar·torii (-tôr′ē-ī)
A flat narrow thigh muscle, the longest of the human anatomy, crossing the front of the thigh obliquely from the hip to the inner side of the tibia.
Etymology: L, sartor, tailor
the longest muscle in the body, extending from the pelvis to the calf of the leg. It is a narrow ribbon-shaped muscle that arises from the anterior superior iliac spine, passes obliquely across the proximal anterior part of the thigh from the lateral to the medial side, and inserts into the tibia. It acts to flex the thigh and rotate it laterally and to flex the leg and rotate it medially. Compare quadriceps femoris.