where is the origin of the sartorius muscle
sarÂ·toÂ·riÂ·us (musÂ·cle). 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. Synonym(s): musculus sartorius [TA], tailor's muscle.