PLATE LXVI. 



SECOND VIEW OF THE ABDOMINAL VISCERA- 

 MESENTERY, SUPERIOR MESENTERIC ARTERIES, &c. 



In this view the transverse colon has been turned upwards with the oinentum and 

 to the wall of the thorax. The anterior layer of mesentery was then dissected 

 away to expose more fully the superior mesenteric vessels which lay between its folds, 

 and the posterior layer of the transverse meso-colon also partially removed to expose 

 the colica media artery and the lower edge of the pancreas. 



Tlio morphological ending of the superior mesenteric artery is opposite the vitello- 

 intestinal duct (Meckel's diverticulum), to which it is always directed. 



The following diagrams are sections of the abdomen and pelvis in the central line 

 <jf the body, showing the reflections of the peritoneum, the cavity of the lesser sac being 

 shaded. 



