The Anatomy of the Human Peritoneum and Abdominal Cavity

The Anatomy of the Human Peritoneum and Abdominal Cavity is by George S. Huntington. The text says that failure of the caudal intestinal pouch to establish a communication with the anal invagination, or failure of development in either anal invagination or intestinal pouch, leads to the condition known as atresia ani or imperforate anus.

The text says that the entodermal pouch or prolongation sent down from the end-gut to meet the anal invagination enlarges and dilates to form a short wide piece of the intestinal tube. The text says that the junction of the main trunk of the abdominal vein with the hepatic portal vein takes place close to the liver under cover of the pancreas, and a figure caption names the venous system of Rana esculenta, frog. Figure captions describe human adult specimens showing the ileo-colic junction and cæcum, ventral appendicular artery and ileo-cæcal fossa, and the text notes a corresponding arrangement in the preparation of the cæcum of Cercopithecus campbellii.