Fig. 26-1. General relations of abdominal viscera. In A, most of the small intestine and transverse colon, as well as the sigmoid colon and rectum, has been removed. The liver and spleen are visible above the right and left flexures of the colon, respectively. The transpyloric and the right and left lateral planes are indicated. In B, the position of the kidneys and ureters is shown. In C, which is a posterior view, the kidneys and spleen are represented. The right twelfth rib is shorter here than the left. Q represents the portion of the quadratus lumborum not under cover of S, the erector spinae. Click for high resolution image.