THE ORGANS OF THE ABDOMEN 71 



portion of the abdominal cavity. The small intestine is a con- 

 voluted (twisted) tube, about twenty feet in length. For about ten 

 inches, commencing at the pylorus, it is called the duodenum (Lat. 



Fig. 79. The Viscera of the Thorax and Abdomen, viewed from the Front. 



i, ribs, the front portions of which, together with the sternum, have been removed ; z, bones 

 of the pelvis ; 3, diaphragm ; 4, thorax ; 5, abdomen ; 6, right lung ; 7, left lung ; 8, heart ; 

 9, stomach ; 10, right lobe of the liver ; n, left lobe of the liver ; 12, spleen ; 13, pancreas ; 

 14, small intestine ; 15, large intestine ; 16, bladder. 



