Muscle compartments of the thigh

The thigh has three muscle compartments:

Anterior compartment (pink) – Sartorius and quadriceps muscles (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis). The femoral nerve and superficial femoral artery supply these muscles.
Medial compartment (green) – Pectineus, obturator externus, gracilis, and adductor muscles (longus, brevis, magnus, minimus). The obturator nerve innervates the medial compartment.
Posterior compartment (blue) – Biceps femoris, semimembranous, and semitendinous muscles. The sciatic nerve innervates the posterior compartment. The deep femoral artery supplies the posterior compartment.

Graphic 56894 Version 4.0

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