MuscleThigh — medial/anterior
Pectineus
Latin: M. pectineus
Location: Thigh
View the pectineus in 3DOrigin
Pectineal line of the pubis and superior pubic ramus.
Insertion
Pectineal line of the femur (between the lesser trochanter and linea aspera).
Action
Adducts and flexes the thigh; forms the floor of the femoral triangle.
Nerve supply
Femoral nerve and occasionally obturator (L2–L4).
Blood supply
Medial circumflex femoral artery.
Clinical relevance
Its dual innervation mirrors its position between the anterior and medial compartments; in cerebral palsy, adductor spasticity (including pectineus) causes scissoring and hip subluxation, sometimes treated by surgical release.
Educational anatomy reference, not medical advice. About this content.