. The comparative anatomy of the domesticated animals. Veterinary anatomy. 416 THE DIGESTIVE APPARATUS IN MAMMALIA. of the abdomen, and afterwards suspended by the short mesenteric frEennm which resembles the great colic mesentery of Solipeds. It is worthy of remark that the great mesenteric artery goes to the Fio-. 209. first, and the small mesen- teric to the second portion, as in the Horse. Measured throughout its whole extent, from the caecal cul-de-sac to the anus, the large intestine of the Ox is from 33 to 39| feet. It is, therefore, longer than that of the Horse; but its capa- city is
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 416 THE DIGESTIVE APPARATUS IN MAMMALIA. of the abdomen, and afterwards suspended by the short mesenteric frEennm which resembles the great colic mesentery of Solipeds. It is worthy of remark that the great mesenteric artery goes to the Fio-. 209. first, and the small mesen- teric to the second portion, as in the Horse. Measured throughout its whole extent, from the caecal cul-de-sac to the anus, the large intestine of the Ox is from 33 to 39| feet. It is, therefore, longer than that of the Horse; but its capa- city is much less, for it does not exceed from GJ to 7| gallons. 2. Tlie Intestines of the Pig. The average length of the Pig's intestines is about 72 feet, of which 56 go to the small, and 16 to the large intestine. In their general dispo- sition they bear some resem- blance to those of the Ox; though only the last portion (if the colon is included be- tween the layers of the me- sentery, it being, for the remainder of its extent, out- side that membrane, where it forms a distinct mass. Among the peculiarities of the small intestine, may be cited the presence of an immense Peyerian gland, which occupies the latter portion of the canal, where it figures as a band measur- ing from 5 to 6J feet in length. The ciecum shows, on its internal surface, some Teye- rianpatches, itisbosselated, as in the Horse, and is fur- nished with three longitu- dinal bands. The colon has two of these muscular bands in a portion of its track, and even three towards the cse- cum ; as well as sume trans- verse folds. It is doubled exactly as in the Ox a, Stomach ; h, Duodenum ; c, Jejunum ; d, Ileum ; e, Caecum; /, Ascendmg colon; g, Transverse colon; A, Origin of des- 3. 2*7(6 Intestines in Car- cending colon ; i, Great omentum ; !i, Spleen ; I, Mesentery ; nivora. (Fig. 209.) m, Pancreas.—1, Aorta; 2, Great mesenteric artery; 3, T^he intestines of the Artery of the duodenum; 4, Artery of the large mtestine
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