STOMACH AND INTESTINE 



443 



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 sacculus rotundus. The 

 lining of the small intestine is beset with numerous minute pro- 

 cesses or villi, by which its surface is increased and absorption 

 of food aided. From the sacculus rotundus there opens a very 

 large tube, the blind gut or caecum, marked by a spiral con- 

 striction and ending blindly in a small finger-like vermiform 



Mn.' 



Fig. 353- 



The alimentary canal of a rabbit removed from the body and 



spread out. 



ap.. Vermiform appendix; c. st.. cardiac end of stomach ; cm., caecum ; co., colon ; du., duodenum ; im., 

 '' ileum ; ots., oesophagus ; py., pylorus ; py.st., pyloric end of stomach ; rm., rectum ; s.r., sacculus 

 rotundus. 



appendix. It starts near the posterior end of the body on the left 

 side, and its main limb runs forward and to the right, then back 

 to the left posterior to the first loop, and finally forward and to 

 the right again in front of the first loop, so that the appendix 

 is on the right side and well in front of the sacculus. A short 

 limb of the caecum, about an inch long, lies on the other side of 

 the sacculus. From the sacculus rotundus there also starts the 

 large intestine, in which two regions may be recognised. The 

 colon is a tube, about a foot and half in length, which begins 

 by running forward and to the right between the first and third 

 loops of the ccecum ; it is sacculated, or constricted by a number 



