Quadratus femoris

Definition

The quadratus femoris is a flat, rectangular muscle located in the gluteal region of the body, acting as one of the lateral rotators of the thigh at the hip joint. It assists in stabilizing the femoral head in the acetabulum, contributing to lower limb movement and posture.

Related terms

Acetabulum:

A deep cup-shaped cavity in the pelvis that forms the socket for the head of the femur to constitute the hip joint.

Femoral Head: The highest part of the thigh bone (femur), which articulates with the acetabulum of the pelvic bone, forming the hip joint.

Lateral Rotation:

A rotational movement away from the midline of the body, an action performed by muscles including quadratus femoris on limbs