. The anatomy of the domestic animals. Veterinary anatomy. 502 DIGESTIVE SYSTEM OF THE DOG The large intestine is two to two and a half feet (ca. 60 to 75 cm.) long in average. Its calilior is about the same as that of the small intestine, and it has neither longitiidinal Ijuiuls nor sacculations. The caecum averages altout five or six inches (ca. cm.) in length, and is flexuous (Fig. 442). The flexures are maintained by the jx'ritoueum, which attaches it also to the ileum. It is situated usually about midway between the right flank and the median plane, ventral to the iluodemnn anil t
. The anatomy of the domestic animals. Veterinary anatomy. 502 DIGESTIVE SYSTEM OF THE DOG The large intestine is two to two and a half feet (ca. 60 to 75 cm.) long in average. Its calilior is about the same as that of the small intestine, and it has neither longitiidinal Ijuiuls nor sacculations. The caecum averages altout five or six inches (ca. cm.) in length, and is flexuous (Fig. 442). The flexures are maintained by the jx'ritoueum, which attaches it also to the ileum. It is situated usually about midway between the right flank and the median plane, ventral to the iluodemnn anil the right branch of the pancreas.' Its anterior eml opens into the origin of the colon, lateral to the ileo-colic orifice. The other eml is pointed and blind. The colon is attached to the sublumbar region by a mesentery—the mesocolon. It presents three parts, which corresponil to the ascending, transverse, and descend- ing colon of man. The first or right part (Colon dextrum s. ascendens) is very short. It passes for- ward along the medial surfac(> of the first part of the duotlenum antl the right tjraiich of the pancreas till it reaches the pyloric part of the stomach; here it turns to the left and crosses the median plane, forming the transverse part (Colon trausversum). The third or left part (Colon sinistrum s. descen- dens) passes backward in the subhmibar region along the medial border or ventral surface of the left kidney; it then inclines toward the median plane and is continued by the rectum. The cali- ber of the colon is about the same throughout. It has no bands nor sacculations. The mesen- tery of the colon is termed tlie mesocolon; it is given off from the left side of tlie common mesen- tery. - The mucous membrane of the caecum con- tains numerous solitary lymph nodules which are circular, vnih a central depression; some are jiresent also in the first part of the colon. The rectum is almost completely covered wth peritoneum, the line of peritoneal reflection b
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
