THE STOMACH. 



395 



lobo of the right sac ; above, it receives the insertion of the oesophagus, and is continuonsj 

 in front, with the reticulum. 



Belatione. — The external form of the rumen being rletermined, the study of its 

 relations becomes easy. By its superior surface, it is in contact with tlie intestinal 

 mass ; its opposite face rests on the inferior abdominal wall. Its left border, supporting 

 the spleen, touches the most elevated part of the flank and the siiblumbar region, to 

 which it adheres by cellular tissue, as well as the vicinity of the coeliao trunk and the great 

 mesenteric artery ; the right border, maigined by the abomasum, responds to the most 

 declivitous portion of the right hypochondriac and flank, as well as to the intestinal 

 circumvolutions. The anterior extremity, bounded by the reticulum and omasum, 

 advances close to the diaphragm ; the posterior occupies the entrance to the pelvic 

 cavity, where it is more or less in contact with the genito-urinary oigans lodged there. 

 In the pregnant female, the uterus is prolonged lorwards on the "upper face of the viscus 

 just described. 



Interior (Fig. 193). — In the interior of the rumen are found incumplete septa, which 

 repeat the division into two sacs already so marked externally. These septa are two iu 



Fig. 193. 



INTERIOR OF THE STOMACH IN EOTINANTS; THE UPPER PLANE OP THE ETOEN 

 INTERIOR OP T^^^ ^^^^^^j^^^^ ^HH THE CESOPHAGEAl PHBROW. 



A Left sac of the rumen; B, Anterior extremity of that sac turned back on Ue 



^'r^SV^L C, Its poste'rio'r ^f^^Z^^^^^l ^^, V^^^ 



(Esophageal furrow ; K, (Esophagus y L, Abomaaum. 

 number, and represet-tl^g^mus^/^^ 



to the left: i^2S'^''^'ZfiZtl(Ff^'^^Q3^n), Lre voluminous than the preceding, 

 acute angle. The yosfenor pdUr (* - ^f^ J; ^i^^l, ^„d t^„ l^te,,l. Thejniddle 

 has three branches at each oti^tsext ^^^ ^^.^^ ^^ ^ 



aether! Xt from abo7eme\t" tie corres^ branch from the anterior p.llar The 



