Muscle
Adductor magnus
Two-part composite adductor
High-yield
Dual innervation — adductor part (obturator), hamstring part (sciatic/tibial). Adductor hiatus transmits femoral vessels to the popliteal fossa.
Overview
The largest adductor with an adductor part (obturator nerve) and a hamstring part (tibial division of the sciatic), whose tendon leaves the adductor hiatus.
Reference facts
- Origin
Inferior pubic ramus, ischial ramus (adductor part), and ischial tuberosity (hamstring part)
- Insertion
Linea aspera, medial supracondylar line, and adductor tubercle of the femur
- Action
Adducts the thigh; adductor part flexes, hamstring part extends the hip
- Innervation
Obturator nerve (L2–L4) and tibial division of the sciatic nerve (L4)
- Blood supply
Deep femoral (perforating) and obturator arteries