TEE INTESTINES. 415 



Peyerian glands are less nmuerous on the internal surface of the email intestine than 

 in Solipeds, though they are larger in size. In the Sheep and Ooat, they are olten 

 more than eight inches in length, and extend to Bauhin's (ileo- cajcal) valve. 



The caicum is nearly cylindrical in form, without bulges or longitudinal bands. The 

 extremity of the cul-de-sac, rounded ami globular, iloats freely in the abdominal cavity, 

 and is directed backwards. At its opposite extremity, the caecum is continued directly 

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

 intestine. 



In the Ox, in the vicinity of this insertion, there are traces of one of Peyer's patches. 

 In the Sheep and Goat, these patches are very numerous. 



The colon, sustained between the layers of the great mesentery, on the margin of 

 which is suspended the small intestine, is rolled upon itself in such a way as to form 

 a certain number of elliptical convolutions, by at first making several concentric spiral 

 turns, which leave a certain interval between them for the reception of the excentric convo- 

 lutions. The last spiral turn is a little distant from the others ; in the smaller Euminants, 



Fig. 208. 



GENERAL VIEW OF THE INTESTINES OF THE OX ; EIGHT FACE. 



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

 'tion of the small intestine; D, CiEcum; E, Its point directed backwards ;r. 

 Flexure of the lart^e colon at its termination ; G, H, Terramal portion ot the 

 intestine.— 1, Insertion of the ductus choledochus; 2, Insertion of the pancreatic 

 duct, 

 it is close to the insertion of the mesentery in the small intestine which it follows to 

 It IS ^!°s^,\° '^°, " ^^ dP<!cribine regular festoons. On reaching the trunk of the great 

 TsUteric art^rrtMstuvS^^ to the right, and is directed backwards, then 



mesenteric artery imsc J^ ^ ^ ^^ack in company with the duodenal 



aruTe 'The cotn Sin cSue's in a direct line to the rcc^tum, attached to a short 

 meseS'eric layer whTch, by its position, resembles the large suspensory band ot the 



floa^ng ""l"" f „^°'^/f-lstine is at first equal to that of the caecum ; but it scon becomes 

 ^ ■%°'^ nVmaintSns aTniform diameter, which scarcely exceeds that of the small 

 constricted and mamtams a unuo ^^ ^^^ ^^^^ arrangement as in the latter, 



intestmeof the Horse i lie m ^ ^^^ ^^^^^ .^ consequence ot the 



although it is not coverea in aii ii f j mesentery, In emaciated animals, , 



situation of the colon between the two f yf„'/JJf;i„^'S,^^^ by these layers to the 

 however, i* -^y.^-^X ^ mor e^^i:ZtZZl Lt we might'be led to think ; on 

 muscular coat ot the ""^"^^^ '""' , ^.^,1 convolutions are found to stand m relief on 

 Z ^frf:i^of t\rmTsX":lnd^n1h^^^^^^^ more completely enveloped in the 



corresponding peritoneal layer . intestine of Ruminants the 



From this description It wmbe^^^^^^^ ^^ ^g^ ^^^^^ .^^^ ^ ^^ ^ ^^ ^^^^^ 



aecal division is we 1 '^«'™™'„ "Vs^^^^ be made; unless we regard as the large or 

 and a small or floating P°'l''>''^^'ll^^Syieln the ikyers of mesentery, and kee the iloat- 



f4Tortionttt%reSxSri 



