Quadratus

Quadratus is a term used in anatomy to refer to a group of muscles found in the human body. The term is derived from the Latin word quadratus, which means square, reflecting the shape of these muscles. There are several muscles in the body that are referred to as quadratus, including the quadratus lumborum, quadratus femoris, and quadratus plantae.

Quadratus Lumborum

The quadratus lumborum is a muscle of the posterior abdominal wall. It is the deepest abdominal muscle and commonly referred to as a back muscle. It is irregular and quadrilateral in shape and broader below than above.

Quadratus Femoris

The quadratus femoris is a flat, quadrilateral skeletal muscle. Located on the posterior side of the hip joint, it is a strong external rotator and adductor of the thigh, but also plays a vital role in stabilizing the hip joint.

Quadratus Plantae

The quadratus plantae is one of the muscles of the foot. It assists in the function of the foot by aiding in the extension of the toes.

See Also

• List of muscles of the human body
• Muscular system
• Anatomy