Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . /, of the os-trich. — After Home,Lecture on Comp. pi. 56. in various directions in the vertebrate animals (fig. 180), butmore simple in the invertebrata, especially the insects (fig. 179),Its length varies according to the nature of the food, being ingeneral longer in herbivorous than in carnivorous this portion of the canal, the aliment undergoes its com-plete elaboration, through the agency of certain juices whichher
Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . /, of the os-trich. — After Home,Lecture on Comp. pi. 56. in various directions in the vertebrate animals (fig. 180), butmore simple in the invertebrata, especially the insects (fig. 179),Its length varies according to the nature of the food, being ingeneral longer in herbivorous than in carnivorous this portion of the canal, the aliment undergoes its com-plete elaboration, through the agency of certain juices whichhere mingle with the chyme, such as the bile secreted by theliver, and the pancreatic juice secreted by the pancreas. Theresult of this elaboration is to produce a complete separationof the truly nutritious parts, in the form of a milky liquidcalled chyle. The process is called chylification; and thereare great numbers of animals, as insects, crabs, lobsters, someworms, and most of the mollusca, in which the product of 184 OEGANS OF DIGESTION. digestion is not further modified by respiration, tut circulatesthrough the body as chyle. Fig. 187. 15 • A.
Size: 1602px × 1560px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1870
