536 



TSE ARTEUIES. 



5. The artem of the reticuluin. having usually a common origin with the inferior 

 artery of the rumen, and passing forward on the left of the oesophagus, to be divided, 

 near the insertion of that conduit, into two branches: one, the mpenor, inclines to the 

 right to the small curvature of the viscus (Fig. 273, 5) ; the other, the inferior, occupying 

 the fissure separating the great curvature of the reticulum from the right sac ot the 

 paunch and giving to the latter organ a great number of brunches (Fig. 273, 4). 



6 The hepatic artery, which is not only distributed to the liver, but also furnishes a 

 branch for the gall-bladder, and a duoJeual artery breaking up into two branches : the 

 posterior branch forming with the first artery of the small intestine an arching anasto- 

 mosis ; the anterior communicating with the superior artery of the omasum and aboniasum. 

 This hepatic artery always originates between the trunk common to the splenic artery 

 and the superior branch of the rumen, and that which gives rise to the superior branch 

 of the same viscus and the artery of the reticulum. 



The terminal branches of the coeliac artery comport themselves as follows : 



1. The superior artery of the omasum and abomasum passes successively to the great 

 cuivature of the first of these reservoirs, and to the concave curvature of the second ; then 

 it goes beyond the pylorus to unite with the duodenal branch of the hepatic artery by 

 inosculation (Fig. 273, 6). 



Fig. 273. 



ARTERIES OF THE STOMACH IN RUMINANTS. 



1, Cffiliac trunk ; 2, Superior artei-y of the rumen ; 3, Inferior artery of the 

 rumen ; 4, Inferior artery of the reticulum ; 5, Superior artery of the reticulum ; 

 6, Superior artery of the omasum and abomasum ; 7, Inferior artery of ditto ; 

 8, Splenic artery ; A, (Esophagus ; E, Left sac of the rumen ; b'. Left conical 

 vesica ; c, Eight sac of the rumen ; c'. Right conical vesica ; D, Reticulum ; E, 

 Omasum ; F, Abomasum ; G, Duodenum ; E, Spleen 



• 2. The inferior artery of the omasum and ahomasum, on the contrary, passes at first 

 over the small curvature of the omasum, afterwards the great curvature of the abomasum, 

 and disappears in the omentum, to which on its course it furnishes a great number of 

 branches (Fig. 273, 7). . 



In small Euminants, the distribution of the arteries of the ooeliac trunk presents 

 some modifications. We will cite the principal, which belong to the mode of origin of 

 the two branches destined for the reticulum : these branches form two particular 

 vessels which arise singly from the cceliac trunk ; the inferior artery at the same point as 

 the superior artery of the rumen, the superior towards the terminal bifurcation of the 

 trunk. 



' Great mesenteric artery.— Ita origin approaches very closely that of the cceliac trunk. 

 After a course of from 6 to S inches, it divides into two branches— an anterior and a 



