Question #435

Considering the adductor compartment of the thigh, which of the following statements is true?

Adductor longus, brevis and magnus arise from the iliopubic ramus

Semitendinosis is a powerful adductor

Adductor brevis inserts into the adductor tubercle

Adductor longus lies posteriorly

Adductor magnus forms a border of the adductor hiatus

The adductor compartment of the thigh is located medially, the muscles are:

• Adductor magnus
• Adductor longus
• Adductor brevis
• Gracilis
• Pectineus
• Obturator externus

They are all supplied by the obturator nerve apart from two exceptions:

1. The ischial head of adductor magnus - supplied by the tibial branch of the sciatic nerve
2. Pectineus - supplied by the femoral nerve

Adductor magnus is the largest of the adductor muscles. It lies posterior to adductor longus and arises with the other adductor muscles from the ischiopubic ramus. In addition it also has fibres arising from the ischial tuberosity (known as the hamstring portion). These fibres are innervated by the tibial branch of the sciatic nerve.

Adductor magnus, longus and brevis all insert into the linea aspira. In addition, adductor magnus inserts into the adductor tubercle just superior to the medial conyle of the femur.

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