Posterior view of abdominal and thoracic viscera in situ.

Anterior view of small and large intestines in situ, ileum reflected to reveal mesentery, sigmoid colon, and aorta.

Illustration of intestinal tract of lower abdomen with a double-barrel colostomy created in the transverse portion of the colon.

Photo of an posterior view of an adult male onto which areas of visceral pain have been projected.

Anterior view of large and small intestine, with transverse colon reflected to reveal superior mesenteric artery. Peritoneum has been partially stripped off.

Anterolateral view of the colon, small intestines, and rectum.