322 



COMPARATIVE ANATOMY 



As the intestine elongates the mesentery becomes pleated and several 

 adhesions are formed. With the growth of the colon the mesocolon twists 

 around the superior mesenteric artery as an axis of rotation. 



DIAPHRAGM 





ESOPHAGUS 

 ■SPINAL CORD 

 DORSAL AORTA 



LIVER 



rORAMEN EPIPLOICUM 

 PANCREAS 



--J._I_. STOMACH 

 , ^^sJ-j-SUR MESENTERIC ART. 



i_tri_(_TRANSVERSE COLON 



iiVlLiJ.INF. MESENTERIC ART. 

 fyf^-l — MESENTERY 



rV->— — i-A-OMENTAL BURSA 



UTERUS 



RECTUM 



Fig. 269. — A median section of the abdominal cavity, showing the relations of 

 the omental bursa. The diaphragm is cross-hatched. The course of the duodenum- 

 jejunum and of the colon is shown by means of arrows. (Redrawn after Braus.) 



The Lr\ er 



The functions of the liver are diverse. During early ontogenesis, it 

 forms red blood corpuscles. Later in life, it becomes an agent in the 

 elimination of blood-cells. It transforms both sugar and protein into a 

 polysaccharid, glycogen, which it stores in its cells for later use. It also 

 secretes bile, which aids in the emulsification of fats, in the activation of 

 lipase secreted by the pancreas, and in the stimulation of peristalsis of the 

 intestine. 



