480 



THE DIGESTIVE APPARATUS IN MAMMALIA. 



volume, and in the disposition they affect in the abdominal cavity. The first 

 is the lame or double colon; the second, the small, single, ov floating colon. 



A, The duodenum as it passes 

 behind the great mesen- 

 teric artery ; B, free por- 

 ti'in of the small intes- 

 tine; C, ileo-cascal portion ; 

 D, caecum ; E, F, G, loop 

 formed by the large colon; 

 G, pelvic flexure ; f, f, 

 point where the colic loop 

 is doubled to constitute 

 the supra-sternal and dia- 

 phragmatic flexures; 1, 

 posterior aorta; 2, 2, 

 arteries to the small in- 

 testines , 3, ileo-cascal 

 artery; 4, superior csecal 

 artery; 5, inferior csecal 

 artery ; 6, artery of the 

 arch of the csecum ; 7, 

 right colic artery , 8, left 

 or retrograde colic artery ; 

 9, first artery of the single 

 colon. 



GEKERAL VIEW OF THE HORSE's INTESTINES (THE ANIMAL IS PLACED ON ITS BACK, AND THE 

 INTESTINAL MASS SPREAD OUT). 



