464 



DIGESTIVE SYSTEM OF THE OX 



tween the caecum and colon, to both of which it is adherent. The orifices of the 

 pancreatic duct and the bile duct are on papillae or thick folds, no diverticulum 

 being present. There are permanent transverse folds of the mucous membrane 

 (Plicae circulares) . Duodenal glands occur in the first twelve to fifteen feet (4 to 4.5 



Fig. 397, — Projection of Viscera of Bull on Body-wall; Right Side. 

 P., Pylorus; G.b,, gall-bladder; R.K., right kidney; L.K., left kidney; P. (above duodenum), pancreas; Bl,^ 

 urinarj^ bladder; V.s., vesicula seminalis; E.g., bulbo-urethral (Cowper's) gland. Costal attachment and median 

 line of diaphragm are indicated by dotted lines. 



Fig. 398. — Projection of Viscera of Cow on Body-wall; Left Side. 

 Oes.t CEsophagus; Ret., reticulum; 6. s., anterior blind sac; 6. s"., posterior blind sacs of rumen; 0, ovary. The 

 left kidney, concealed by the dorsal sac of the rumen, is indicated by dotted hue. The median line of the diaphragm 

 is dotted. 



m.), intestinal glands throughout. The aggregated follicles or Peyer's patches are 

 larger and more prominent and distinct than in the horse, and vary greatly in size 

 and number; in adult cattle there are eighteen to forty; in calves twenty to fifty- 

 eight have been counted. They usually have the form of narrow bands. There 

 is a patch close to the ileo-caecal valve. 



