What is vastus lateralis muscle?

Vastus Lateralis Muscle

The Vastus lateralis (vastus externus) is the largest part of the quadriceps femoris. It arises by a broad aponeurosis, which is attached to the upper part of the intertrochanteric line, to the anterior and inferior borders of the greater trochanter, to the lateral lip of the gluteal tuberosity, and to the upper half of the lateral lip of the linea aspera; this aponeurosis covers the upper three-quarters of the muscle, and from its deep surface many fibers take origin.

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Vastus Lateralis Muscle - Additional Images
... Anterior surface Muscles of the iliac and anterior femoral regions Muscles of the gluteal and posterior femoral regions The femoral artery Cross section through thigh Vastus lateralis muscle Vastus lateralis ...