

mi: I>K.I:>II\I: IPPARATU6 i\ M.I MM i/./.i. 



These cavities represent u coiiKideraMe ma<.-< that till tin- ^r. ater part of the 

 itUloiiiinal cavity, and the medium capacity of which in nut It * tlian lilt\ li\< -pillons! 

 One of tin-in, the ritmtn. into \\hirli lln- o^ophagus is itiseit> -.1, cmistiliiN > nine-tenths 

 of the total mass. The other three, the relict'lum, tinmanm. and nlHrinufinn, form a .-h<>rt 

 i-li.iin. continuous with the left and anterior |irii..n ..ftl,' rumen. '1 'In- iiboma.-iiiii alone 

 should be considered as a true stomach, analogous to that of the Dog, or tin- right 

 the ventrk-nlum of Solipeds. Tlie other three compartments only I'pn.-'iit. like tin- 

 left sac in the latter animals, ossophageal dilatations. 



The description about to be given of each of these divisions moro particulailv applii-s 

 to the Ox; cure will be taken, in the proper place, tonoU- tht- up. rial ).<-culiiniii .s in tin- 

 stomach of the Sheep and Goat. 



RUMEN (Fig. I'M). This reservoir, vulgarly dr.si^natnl tin- /n<r/i, alone ixvupics 

 three-fourths of the abdominal cavity, in which it atfects a direction inrliiad from al-'\ 

 to below, and from left to right. 



Fig. 192. 



8TO1CACH OF THE OX, SEEN ON ITS RIGHT UPPER FACE, THE AUOMAS1.M m.l V. 



A, Rumen, left hemisphere ; B, Rumen, right hemisphere ; c, Termination of the 

 oesophagus ; D, Reticulum ; E, Omasum ; F, Abomasum. 



External conformation. Elongated from before to behind, and depressed from above 

 to below, it offers for study : 1, An inferior and a superior face, nearly plane, smooth, 

 and divided into two lateral regions by traces of fissures, which arc only sensible at the 

 extremities of the organ; 2, A left and right border, smooth, thick, and rounded; 

 15, A posterior extremity, divided by a deep notch into two lobes, described by Chabert 

 by the name of conical cysts; 4, An anterior extremity, offering an analogous 

 arrangement, and concealed, at first Bight, by the stomachs (or compartments) superaddrd 

 to the rumen; the notch on the right of this extremity dividi it into two uni-<|iial 

 pom-lies, which will be referred to presently. 



It is to be remarked that these two notches, which are prolonged on the surface by 

 furrows that separate these into two lateral regions, divide the runii n into tiro ft 

 ritjht and left ; this division we will find more manifest in the interior of tin \ i>ens. The 

 right me, the shortest, is in great irt enveloped by the serous covering which 

 constitutes the great omentnm. The Inf 000 sqrnMKl the other by its two extremities, 

 except in the Sheep and (Joat, in which tin- ri^ht eotiic-al cyst is longer than the 

 left. The anterior extremity of this left ^a. i- thrown buckuards im the i-orn s 



