Adductor magnus muscle

Adductor magnus muscle

The adductor magnus muscle is a large triangular muscle, situated on the medial side of the thigh. It is part of the adductor group of muscles, which also includes the adductor longus, adductor brevis, pectineus, and gracilis muscles. The adductor magnus is the largest and most powerful of the adductor group.

Anatomy

Origin and Insertion

The adductor magnus originates from the inferior pubic ramus, the ischial ramus, and the ischial tuberosity. It inserts along the entire length of the linea aspera of the femur, as well as the adductor tubercle on the medial condyle of the femur.

Structure

The adductor magnus is divided into two parts:

• The adductor part, which is the anterior portion, originates from the inferior pubic ramus and the ischial ramus and inserts into the linea aspera.
• The hamstring part, which is the posterior portion, originates from the ischial tuberosity and inserts into the adductor tubercle.

Innervation

The adductor part of the muscle is innervated by the obturator nerve, while the hamstring part is innervated by the tibial nerve, a branch of the sciatic nerve.

Blood Supply

The adductor magnus receives its blood supply from the deep femoral artery, the obturator artery, and the popliteal artery.

Function

The primary function of the adductor magnus is to adduct the thigh at the hip joint. The adductor part assists in hip flexion, while the hamstring part assists in hip extension. Additionally, the muscle helps stabilize the pelvis during walking.

Clinical Significance

The adductor magnus can be involved in groin strains, which are common in athletes. It may also be affected in conditions such as adductor tendinopathy.

Related pages

• Adductor longus muscle
• Adductor brevis muscle
• Gracilis muscle
• Pectineus muscle

Gallery

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  Anterior view of hip muscles

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  Muscles of the gluteal and posterior femoral regions

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  The arteries of the gluteal and posterior femoral regions

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  The popliteal, posterior tibial, and peroneal arteries

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  The femoral artery

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  The lumbar plexus and its branches

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  Adductor magnus muscle

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  Adductor magnus muscle

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  Adductor magnus muscle

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  Adductor magnus muscle

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  Anterior view of hip muscles

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  Adductor magnus muscle

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  Muscles of the gluteal and posterior femoral regions

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  Adductor magnus muscle highlighted

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  Muscles of the thigh

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  Adductor magnus muscle in relation to other thigh muscles

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  Adductor magnus muscle

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  Adductor magnus muscle

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  Adductor magnus muscle

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  Adductor magnus muscle