Adductor magnus muscle

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The adductor magnus muscle is a muscle of the hip that connects the pelvis to the femur. When contracted, it bring the hip forward and inward (extends and adducts it) and rotates it medially (knee cap turns inward).


Pectineus muscle Obturator externus muscle Adductor magnus muscle Adductor magnus muscle Adductor brevis muscle Adductor longus muscle Femur Pubic bone Ilium bone'The deep muscles of the thigh.'


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The deep muscles in the thigh, viewed from the front of the body.

The adductor magnus muscle has two sections, the adductor portion and the hamstring portion. The adductor portion is responsible for the adduction and medial rotation of the hip. The hamstring portion is responsible for the extension of the hip. The two sections have separate functions and innervations.

Contents

Origin

The adductor magnus originates from the lower pelvis. The adductor portion originates from the ischiopubic ramus. The hamstring portion originates from the lower outer quadrant of the posterior surface of the ischial tuberosity.

Insertion

The adductor magnus inserts on the femur. The adductor portion attaches at the lower gluteal line and linea aspera of the femur. The hamstring portion attaches at the adductor tubercle of the femur.

Innervation

The adductor magnus is innervated by the posterior division of the obturator nerve (L2-L4) for the adductor portion and the tibial portion of sciatic nerve (L4-S3) for the hamstring portion.

See also

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