THE 

 f. Tii pr Is ft dependency of the peritoaeMB, Md oners nothing 



particular; it do.-> not completely cover tin- anterior I'M 

 ;//./r /i////.- is much fasciculated, and thin. 



The mwoiix iiii-nil'rane is remarkable fur the thickness of its Gratified pnvement 

 epithelium; :ill the leaves a re formed by two l;iy< r.-of this membrane, laid one against tl.e 

 other; Mini a.- their structure is intt-n -.Ming, we will not in- it. 



The principal h :ives are composed of this duplicatun' of mucous membrane, ainl two 



)a\ i r> of muscular fibres ht tween ; these layers are opposite each other at the eommenoe- 



t ilu 1. at. iiiul se| a rated by a transverse vessel ; in the remainder of their e\t. nt 



. r<- kept apart l>y the vessels that pass towards the liortler of the leaf. Their fibres 



an- d tached from tin- surface of the muscular tunic and, at certain jx>ints, from its d. . -p 



layer. In tin- smaller leaves there appears to IK- only one layer of muscular fibres: on 



all tin- leaves are various-.-i/cd papill.-c. tin- Miinlli-.-t f which an- like a L'nii!) of millet. 



Fig. I'.-:,. Fig. 196. 



H>N OF A LEAF OF THE OMASUM. LONGITUDINAL SFXTTIOX OF A I.AIKiK PA- 



1. 1, Mns, ular planes; r, vessel; 2, Epithe- PH-'-A FROM TIIK OMASUM, SHOW is,, 



lium; :i, a, .Small-sized papillae, roun.l MKVK-CELI^ IN ITS INTERIOR. 



Mll'l iial'.l. 



ami have fur l>a- '-undensed connective tissue, whose superficial fibres form a 



kind of shell (Fig. 195); the largest are club-shaped. They receive blood-vessels, and 

 \\e La\e found in the connective tissue, elements with as"mewhut irregular outline, pro- 

 \idtd with nuclei, which we considered to be nerve-cells (Fig. 196.) 



AB<IASI M <I:KKJ or KKXNKT. Figs. 192, 193). Situation Form Relations The 



- next to tin rumen t'ur capacity. It is a pyriform reservoir, curved on 

 iN It', elongated fioni before to behind, and situated behind the omasum, above the right 



the rumen. < >n the right it touches the diaphragm ami tlie bv|tocliondriac; on 

 the left it is relatnl to the riiineii. The ./M nt, r ciirnitu n; turned downwai tl-. r> 

 the insertion of tlie u'n at onu ntiiin. The letter ctirrdtnn. inclined upward*, 

 attachment t" t .mil already noticed when speaking of the great curvature i-f 



the oiiiasuni. lt~ '-'- is in contact with the n//-i/.--//- of the rctieiiliim, and is beparatf<l 

 fr.-ni the <'inanm l>y the c.in.-trietioii in the form of a thick neck, which corn -|*,nd8 to 



mmnnicating orifice of tm- two stomach-'. Its ;>/>//. directed upwar.ls and )),ick- 

 wardn, in continued l>y the duodenum. 



liilirinr. Thi hiviiir the true stomach of K'.miinants. the nnicoii-i membrane lininir 



;.ri"r acquires all the characters which distinguish that of the stomach of the 

 ,,r that of the ri^'ht .-ac of the Horse's stonuu-h. It is soft, spongy, smooth to 

 the touch, vascular, retl-iv^oun-d, covered by a thin epithelium, and provided with 

 numerous glamU for tie ^ecretion of the gastric juice. Thinner than in i, 

 animal.-, tin- tenuity is compi i:s:iti d tor by a much greater extent of surface, which is 

 still further increased by numerous lamellar folds. The.-*- lattir an- analogous in eon- 

 stituti >n to tho-e of the omasum, !.-- bli<p-ie manner tin- great axis ol the 



nt->niasuin, and altogether aflfect a kind of spiral arrangement. 



The aUimasiim has two apt i ture- : one. situated at its 1 into the omasum : 



ther. | !;" I ..j.j- -;;. to the lirbt. and much narrower, in tlie pylorus, which is 



- in ti.e other animals, by a muscular ring. 



.rfuri.- -The >, nmn mi inln-iiii- is continuous with the onnnta which al>ut on the 

 and leaser curvatures of tlf I In- nt>if--nl<ir /<i;/r isof tl.e same thickness 



an in the omasum. Tin- int- m. il limit- has already be. n n. .):,. d. 



or THE STOMACH IN UVMINANTS". We cannot p r . tend to giro here a 

 comph ! hit..ry of the phenomena of riiniinatiou, but must conli 1 to describe 



in a few word- wh .t arc the principal attributes of . ach -Mstric i|ilat::tion. 



