They are deep muscles in the back.
Quadricep, quadratus lumborum, quadratus femoris... Quadricep
quadratus lumborum
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
erector spinae, hamstrings, gastrocnemius, trapezius, quadratus lumborum