GREAT COLON. 



30& 



three Jiexiiycs or oends. la tracing its course, these tour divisions 

 present themsshes thus. Leaving the arch of the caecuna in the 

 right lumbar region, it passes obliquely forwards to the posterior 

 surface of the diaphragm in the epigastric region, where it turns 

 round to the left, forming the first or sternal flexure. Here the 

 second division originates, and in contact with the inferior ab- 



f IG. 103. 

 i,^.Csecum ; h, 



CiEcura and Great Colon of a Horse. a,!.Caecum ; &, c, Its muscular bands ; d. Termination of the 

 ileum; e. First, c', Second, /, Third, and /', Fourth division of colon ; g, Pelvic flexure ; h, Ongln 

 of Floating Colon. The arrows indicate the course of the food through the colon. 



<lominal walls, it runs backwards to the hypogastric region, where 

 it is doubled upon itself, forming the second, sigmoid or pelvic 

 flexure. From this flexure, the third portion passes forwards, 

 above and to the left of the second, to which it is attached by 

 cellular tissue and peritoneum, reaches the diaphragm, and is 

 inflected upwards to the right, forming the third or diaphrag- 

 matic flexure, which is in relation with and below the liver and 



