It has two separate actions, depending on whether both or only one is contracted. Unilateral (only one muscle) contraction gives rise to lateral flexion of the back/vertebral column. Bilateral (both sides) contractions causes depression of the thoracic rib cage (usually during respiration).
The quadratus lumborum is a quadrilateral and irregular shaped muscle in the lower back. It allows for flexion of the vertebral column and also assist in the decompression of the thoracic rib cage.
Quadricep, quadratus lumborum, quadratus femoris... Quadricep
quadratus lumborum
They are deep muscles in the back.
Quadratus lumborum
The quadratus lumborum is known as the hip hiker muscle because it is the muscle that raises the hip.
quadratus lumborum
quadratus lumborum
Quadriceps, quadratus lumborum, quadratus femoris are body parts that start with Q.
Quadratus Lumborum
quadratus lumborum
It is actually a lower back muscle that is located in the posterior abdominal wall
Quadratus lumborum