Name

# Sartorius

Pronunciation

(sar-TOR-e-us)

Origin/Proximal Attachment

Anterior superior iliac spine (ASIS)

Insertion/Distal Attachment

Upper medial surface of body of tibia; contributes to pes anserine

Action/Relevance

Flexes hip & knee. Assists to externally rotate hip

Innervation

Femoral nerve (L2, 3)

Notes

Long narrow strap like muscle.

The longest muscle in the body

Crosses the thigh obliquely to the medial side then runs more vertically to the medial aspect of the knee.

Medial border of the upper portion of sartorius forms the lateral border of the femoral triangle