Sartorius

(sar-to're-us.) [From L. sartor, a tailor.] (Anat.) Aflat, slender muscle of the thigh, and the longest in the human body, extending from the upper and anterior part of the thigh to the inner part of the tibia. It serves to bend the leg inwards obliquely, and to bring one leg acro the other, whence its name of S., or " tailor's muscle." [s. 798]