Question

In addition to flexing the knee, the sartorius:

A. extends and medially rotates the hip joint
B. flexes and laterally rotates the hip joint
C. extends and laterally rotates the hip joint
D. adducts the thigh

Answer 1

The sartorius muscle is responsible for flexing the leg at the knee and has the additional functions of flexion, abduction, and lateral rotation at the hip joint.

Step-by-step explanation:

The sartorius muscle is a band-like muscle that extends from the anterior superior iliac spine to the medial side of the proximal tibia. It is located in the anterior compartment of the thigh and is responsible for flexing the leg at the knee. In addition to knee flexion, the sartorius also has the ability to flex, abduct, and laterally rotate the leg at the hip joint. For example, when you sit cross-legged, the sartorius muscle is engaged.