452 



ABDOMEN 



the abdominal walls to display the interior of the abdomen. 

 It extends from the diaphragm above to the pelvic floor 

 below (Fig. 171), across the abdomen from one lateral wall 

 to the other (Fig. 1 74), and it is divided by the lower part of 



Small omentui 



Stomach 



Omental bursa 

 (O.T. small sac) 



Great sac 



Great 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. 171. Sagittal section of Abdomen showing cavities. 



the wall of the omental bursa, that is, by the greater omentum, 

 the transverse colon, and the transverse meso-colon, into an 

 upper and anterior, and a lower and posterior part, which are 

 continuous with each other round the borders of the greater 

 omentum (see Fig. 174). The upper and anterior part of 

 the sac extends upwards to the lower surface of the diaphragm, 

 where it intervenes between the liver and the diaphragm, and 



