IK THE DIGESTIVE APPARATUS I\ MAMMALIA. 



of the abdomen, and afterwards suspended by the short nes.nt.-ri.- fneuum \\hi.-h 

 tho great colic ine.-'iit ry ..I' s..li|.eds. It IB worthy of remark that tin 



nie.-c nti rie artery goes t<- the 



Fig. -"''. first, and the sinall nn s- n- 



terie t the seeond ])ortion, 

 a.- in tin- Unix-. 



Measured throughout it-< 



\\ hole extent, from tin 



i-nl.,1, -*,tr to the anus, the 

 larire intestine of the < 

 from 33 to 39J feet. It is, 

 then fore, longer than that 

 of the Horse; but it- capa- 

 city is much less, for it does 

 not exceed from Gi to 1\ 

 gallons. 



2. The Intestine* of the. Pig. 



The average kngth of 

 the Pig 1 s intestines is about 

 72 feet, of which 56 go to 

 the small, and 16 to the 

 large intestine. 



In their general dispo- 

 sition they bear some n sem- 

 blance to those of the Ux ; 

 though only the last portion 

 of the colon is included be- 

 tween the layers of tin me- 

 sentery, it being, for tin- 

 remainder of its extent, out- 

 side that membrane, where 

 it forms a distinct mass. 



Among the peculiarities 

 of thft snidJI ititi-xtiiie, may 

 be cited the presence of an 

 immense Peyerian gland. 

 which occupies the latter 

 portion of the canal, where 

 it figures as a band measur- 

 ing from 5 to 6J feet in 

 length. 



The ca'cum shows, on its 

 internal surfaee, ,-ome Peye- 

 rian patches ; it is bosselated, 

 us in the Hor*e, and is fur- 

 nished with three longitu- 

 dinal bands. The colon has 

 two of these muscular bands 

 in a i>ortion of its track, and 

 even three towards the cae- 

 cum ; as well as some trans- 

 verse folds. It is doubled 

 exactly as in the Ox. 



3. The Intent hie* in Car- 

 nivora. (Fig. 209.) 



The intestines of tin 



INTKST1NKS OF TIIK IXKJ. 



c, Stomach ; 6, Duodeuum ; c, Jejunum ; d, Ileuin ; c, Caecum ; 



/, Ascending colon ; g, Transverse colon ; /i, Origin of de- 



cending colon ; i, Great omentum ; /, Spleen ; /, Mesentery ; 



j/j, Pancreas. 1, Aorta; '_', CJi-eat meseuteric artery; 3, 



Artery of the duodenum; 4, Art -rv of tin large intestine; Carnivora are renmrkable 



5, Small mesenteric artery. ( ,, r their shortness and .-mall 



volume. In u ]><ni of ordi- 

 nary size, they scarcely measure more than It feet in length, of which only 24 to 28 

 iucl.es are for the large intestine. In tin C,,t. the latter is about one-half this length. 

 and the entire extent of tin- \ i> u- is e.|iml to aliout 6 or 7 lift. With regard to 



