Description: The muscles visible in the anterior region of the thigh include m. of the anterior compartment, and superficial m. of the adductor compartment. The anterior compartment contains  muscles inserted onto the pelvis and extending into the front of the thigh.  They include the Tensor Fascia Latae m., the Sartorius m., and the Quadriceps Femoris  m. It also contains the terminations of the Iliacus and Psoas m, called the Ilio-psoas m.  after leaving the pelvis. The Quadraceps has four parts: rectus femoris, and the vastus lateralis, the v. medialis, the v. intermedius m. The circulation is from deep femoral a., and the innervation from L2-L4 via the Femoral n., and the Superior Gluteal n. for the Tensor Fascia Latae m.. Medially, in the adductor  compartment, the Gracilis, the Adductor Longus, and the Pectinius are attached to the pubis, or emerge from within the pelvic cavity. The Fascia Lata, a fibrous sheath encompasses these muscles, binding them together, and the major vessels, nerves, and lymph vessels to the thigh lie in between.  These m. are innervated by L2-4 via the Obturator n.