Musculus pectineus

The pectineus is a flat quadrangular muscle located at the anterior part of the upper medial aspect of the thigh. It can be classified as either within the medial compartment or the anterior compartment of the thigh.


  • origin: pectineal line (pecten pubis) and adjacent bone of pelvis
  • insertion: oblique line extending from base of lesser trochanter to linea aspera on posterior surface of femur
  • action: adducts and flexes thigh at hip joint
  • arterial supply: obturator artery
  • innervationfemoral nerve