1252 



THE ORGANS OF DIGES7TOX 



Stomach - 



Greater curvature 



Anterior lamella of greater omentum- 

 Posterior lamella of greater omentum - 



Transverse colon 



Greater amentum 



Transverse mesocolon 

 Duodenum 



Mesentery 



Small intestine 



FIG. 974. Illustrating the development of the bursa omentalis, cavity of the greater omentum or lesser sac. 

 Fetal stage. * Lesser sac. (Hertwig.) < 



Diaphragm 

 Liver 



Stomach 



Greater curvaturi 



Posterior lamella of greater omentum 

 Transverse colon 



Lesser omentum 



Pancreas 



Part of omentum enclosing pancreas 



Transverse mesocolon 



Duodenum 



Mesentery 



Small Intestine 



FIG. 975. Development of bursa omentalis. Infantije stage. Greater omentum covers the intestines and h; 

 fused with the transverse mesocolon. Pancreas is free from peritoneum posteriorly. (Hertwig.) 



Mesofiastrium 

 anterius. 



JAver. 



Umbilical vein 



Border of the ventral 

 mesogastrium. 



'ursa omentalis. 



Pancreas. 



Mesogastrium 



posterius. 

 Duodenum. 



Greater omentum. 



Transverse colon. 



Fro. 976. Schematic figure of the bursa omentalis, etc. Human embryo of eight weeks. (Kollmann.) 



