////; TNTESTIM > 415 



ian glands are less numerous on the intenml surfae,. ,,f tin- small intestine than 

 in S'.lipeds. though they ;in- larger in size. In tin- >//../, an. I (,'..n/. tin y an- nlti-n 

 more than ei^ht inches in length, ami extend to Bauliiu's (ilco- cH-cal ) val\e. 



Tin- ;ii-iiiii i^ nearly cylindrical in form, without bulge* <>r longitudinal hands. The 

 extremity of the I'nl-iir-siir, rounded and globular, floats frc-ly in tin- iiWominal ca\it\. 

 ami is directed backwards. At its opposite extremity, the caocum is contimi. ! din-etiy 

 with tin- colon, without forming a crook, after having received the insertion of the small 

 inte.-tine. 



In tin- <>s, in the vicinity of this insertion, thorp are traces of one of Peyer*s patches. 

 In tin- Shf i> ;uul <;<it. these patches are very numerous. 



Tin <<,!,>. sustained between the layers of tlie great mesentery, on the margin of 

 which is sus]>cnded tin- sm:ill intestine, is rolled U]H>II it.-elt' in such a way as to t'orin 

 a c, rtain nitmli. r of elli]itical convolutions, by at first making several concentric spiral 

 turns, which leave a certain interval U-tween them for the reception of the e\< eiitric convo- 

 liiti -na. The last spiral turn is a little distant from the others ; in the smaller Ruminants, 



Fig. 208. 



M.P..U. VIKW OF TMK INTESTINES OF THE OX; RIGHT FACE. 



A, Origin of the duodenum ; n. Floating portion of the small intestine ; c, Termina- 

 tinii ni' tin- small intestine; n, Ca-cura ; E, Its point directed back wan I- ; K. 

 Flexure of the large colon at its termination; <;, n. Terminal portion ot' the 

 int. '-tine. 1, Insertion of the ductus choledochus ; 2, Insertion of the pancivutii- 



dllrt. 



>* to ill-- insertion of the mesentery in the small intestine, which it follows to 



the duodenum in d- .-criMiiu' regular festoons. On reaching the trunk of the great 



rtery, this convolution passes to the rij;ht, and id directed backwards, then 



>lh, limn I'ormini; a tlexure, and turns back in company with the duodenal 



111 Mil". Th" eii'i.in then eontinucH in a direct line to the rt-ctum, attached to a short 



t rie layer, which, by its position, resembles the large suspensory baud of tin- 



.^ colon in Sulij 



.-.i ill. re 1. 1' this intestine is at first equal to that of the caecum; but it soon bec< 



-icted, and maintains a uniform diameter, which scarcely excels that of the small 



i" .,1 th. Ilr.-e. The muscular layer has the same arrangement as in the latter. 



:K it i- i. i . .... pd in all its points by the serous tunic, in consequence of the 



situation of the colon lietween the two layers of the mesentery. In emaciated animals, 



however, H may be remarked that th<- mow eofarfiw ftonUMd by tliew la\er to the 



miiscuhir coat of the colon is more extensive than at lirst we might In- led to think : on 



: . tin- prominences of the spiral c- molutions are found to stand in n li 

 irface of the mesentery, and it is therefore more completely envelojM-d in the 

 ritoiieal layer. 



ription. it will l>e seen that in the laru'e int. -tine of Huminaiits the 

 well di lined, but that the division of tin- rtilon into a /nr</- or ./.././, 

 or tliMitimi ]H,rtin,i can scarcely bo made; unless we regard at* the la 

 Hevnre-l colon the spiral fold.- contained I* twr n the l.i\. r-"l im ntery. and see the ll. at- 

 .n th" p...|eri..r extremity of tin- tube lying at first against the suhliim 



