Question

What muscle is absent in about 40% of populations and is superficial to psoas major?

a) Tensor fasciae latae.
b) Sartorius.
c) Quadriceps femoris.
d) Gluteus maximus.

Answer 1

The muscle that is absent in about 40% of populations and is superficial to psoas major is the Tensor fasciae latae.

Step-by-step explanation:

The muscle that is absent in about 40% of populations and is superficial to psoas major is the Tensor fasciae latae. It is a thick, squarish muscle in the superior aspect of the lateral thigh. The Tensor fasciae latae acts as a synergist of the gluteus medius and iliopsoas in flexing and abducting the thigh. It also helps stabilize the lateral aspect of the knee by pulling on the iliotibial tract (band), making it taut.