Fig. 40-1. Horizontal section through the muscles of the back, showing the arrangement of the spinotransverse and transversospinal systems. The posterior (P) layer of the thoracolumbar fascia encloses the latissimus dorsi. The middle (M) and anterior (A) layers of the thoracolumbar fascia enclose the quadratus lumborum. See also fig. 29-5. L, "lumbar intermuscular aponeurosis" (N. Bogduk, J. Anat., 131:525-540, 1980). Click for high resolution image.

Jump to: