Illustration of crossection of the lower back at the lumbar level, showing the oblique abdominal muscles and the deep and superficial back muscles. Lines indicate position of abdominal viscera and vasculature.

Includes Labels: Colon, Fascial planes, External oblique m., Internal oblique m., Transversus abdominis m., Latissimus dorsi m., Quadratus lumborum m., Lumbar spine, Spinal cord, Lumbar n., Psoas m., Lumbar vertebra, Aorta, Inferior vena cav