It refers to the anterior extremity of the iliac crest of the pelvis, which provides attachment for the inguinal ligament, and the sartorius muscle.
en.wikipedia.org It gives motor innervation to iliopsoas, pectineus, sartorius, and quadriceps femoris; and sensory innervation to the anterior thigh, posterior lower leg, and hindfoot.
en.wikipedia.org The pes anserinus is made up from the tendons of the gracilis, semitendinosus, and sartorius muscles; these tendons attach onto the anteromedial proximal tibia.
en.wikipedia.org From anterior to posterior, the pes anserinus is made up of the tendons of the sartorius, gracilis, and semitendinosus muscles.
en.wikipedia.org Even though the sartorius flexes the knee, it is ontogenetically considered an extensor since its displacement is secondary.
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