ABDOMINAL CAVITY 



and, as the chief distinction is to be found by an examination 

 of the interior of the tube, the student will not in the mean- 

 time see much difference between them. 



To expose the commencement of the jejunum, the greater 

 omentum, with the enclosed transverse colon, should be thrown 

 upwards over the lower margin of the thoracic wall. The 



DUODENO-. 

 JEJUNAL FLEX: | 



ILEUI 

 "VERMIFORM PROCESS. 



FIG. 145. The Mesentery in a subject which was hardened by formalin 

 injection. The jejunum and ileum have been removed, and the foldings 

 of the mesentery are displayed. 



coils of the small intestine should then be drawn over to the 

 right. The junction between the duodenum and the jejunum 

 will now be seen on the left side of the vertebral column, at 

 the level of the second lumbar vertebra. The termination of 

 the duodenum is fixed, partly by its relation to the peritoneum 

 and partly by the suspensory muscle of the duodenum, which 

 will be described later (p. 344) ; the commencement of the 



