2 7 8 



THE ABDOMEN AND PELVIS 



Originally it consisted of two layers above and four layers below, 

 as shown in Fig. 85, but these layers may become completely 

 fused, and in the living subject it is not always possible to 

 distinguish more than one layer. 



Lesser omentum 



Stomach 



Omental bursa 

 (O.T. small sac) 



Great sac 



Greater omentum 



Uterus 

 Urinary Bladder 



Liver 



Epiploic foramen 

 (O.T. foramen 

 of Winslow) 



Pancreas 



Duodenum, 

 3rd part 

 Transverse colon 



Mesentery of 

 small intestine 



Small intestine 



Rectum 



FIG. 85. Sagittal Section of Abdomen showing the arrangement 

 of the Peritoneum. 



The two posterior layers of the greater omentum, having 

 enclosed the transverse colon, pass backwards and upwards to 

 the posterior abdominal wall, as the transverse meso-colon, 

 and there they separate along the anterior bordei of the pancreas 

 on a level with the second lumbar vertebra. The superior layer 

 passes upwards over the posterior abdominal wall and is then 



