Muscle
Pectineus
Flexes and adducts the hip
High-yield
Transitional muscle — usually femoral nerve, sometimes also obturator. Floor of the femoral triangle.
Overview
A flat quadrangular muscle in the femoral triangle floor that adducts and flexes the hip; it may have dual (femoral + obturator) supply.
Reference facts
- Origin
Pecten pubis (superior ramus of the pubis)
- Insertion
Pectineal line of the femur (below the lesser trochanter)
- Action
Adducts and flexes the thigh at the hip
- Innervation
Femoral nerve (L2, L3); occasionally obturator nerve
- Blood supply
Medial femoral circumflex / obturator arteries