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MANUAL OF ELEMENTARY ZOOLOGY 



sphincter. The small intestine is a narrow, much-coiled 

 tube, seven or eight feet in length. Its first section or 

 duodenum runs from the pylorus along the right side of 

 the abdomen nearly to its hinder end and then turns 

 forward again, forming a loop. In the mesentery between 

 the two limbs of the loop lies the thin, diffuse pancreas, 



Fig. 324. —The alimentary canal of a rabbit removed from the body 

 and spread out. 



«^., Vermiform appendix ; est., cardiac end of stomach ; an. t cjecum ; co.> colon ; 

 du., duodenum; im., ileum ; oes., oesophagus ; j*j*., pylorus; py.st., pyloric end 

 of stomach ; rwz., rectum; s.r., sacculus rotundus. 



whose duct enters the returning limb of the loop about 

 three inches beyond the bend. The liver is a large, dark- 

 red, lobed organ slung from the diaphragm by the falciform 

 ligament ; in a groove upon its right central lobe lies the 

 elongated, dark-green gall bladder, from which the bile 

 duct runs backwards to open into the dorsal side of the 

 duodenum shortly beyond the pylorus. The remainder of 

 the small intestine is the ileum ; it ends in a round swelling 

 known as the sa(culu$ rotundus. The lining of the 



