1646 



HUMAN ANATOMY. 



the retro-peritoneal connective tissue and by the peritoneal reflections. The shape 

 allows the food from the stomach as well as the fluid poured into it from the liver 

 and pancreas to accumulate and thus to act as an S-trap to prevent the passage of 

 gases from the intestine into the stomach. At the same time the great development 

 of the plicae tends to retard the passage of the food. 



Peritoneal Relations. — The peritoneum of the front and back of the stomach 

 is continued along the right and left sides of the first part of the duodenum respec- 



Right lung 



Cut diaphragm- l — 



Hepatic vein 

 Vena cava. 



Right suprarenal body, 

 Gastro-hepatic omentum 

 Probe in foramen ot- 

 Winslow 



Right kidney. 



Beginning of 



duodenum 



Beginning of 

 transverse colon. 



Head of pancreas. 



Duodenum — 



Right mesocolon 

 Ascending colon 



End of ileum 

 Appendix 



Rectum 

 Bladder 



Left lung 



Pericardium 



Caval opening in 

 diaphragm 



CEsophagus 



Spleen 



Left suprarenal 

 body 



Left kidney 

 Splenic flexure 

 Tail of pancreas 



Left end of cut 

 transverse colon 

 Jejunum 

 — ^— Superior mesen- 

 teric artery 



Left mesocolon 



Cut root of 

 mesentery 



Sigmoid flexure 



Abdomen of formalin subject ; peritoneum partially dissected off, exposing organs in situ on posterior wall ; transverse 



colon, mesocolon, mesentery, and jejuno-ileum removed. 



tively. These layers meet above along the greater portion of the first part to form 

 the lesser omentum, which ends posteriorly, as already stated, by forming the hepatico- 

 duodenal ligament, consisting of the vessels entering the portal fissure of the liver 

 with their enveloping connective tissue. The free edge where the peritoneum passes 

 behind the ligament is on the inner side rather than above the gut. Just back of this 



