Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . § 333. The chyle is composed of minute, colourless glo-bules, of a somewhat flattened form. In the vertebrata, it istaken up and carried into the blood by means of very minutevessels, called lymphaticvessels or lacteals, which are distributedeverywhere in the walls of the intestine, and communicate with t/ the veins, forming also in their course several glandularmasses, as seen on a portion of intestine connected with a vein(fig. 189), an
Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . § 333. The chyle is composed of minute, colourless glo-bules, of a somewhat flattened form. In the vertebrata, it istaken up and carried into the blood by means of very minutevessels, called lymphaticvessels or lacteals, which are distributedeverywhere in the walls of the intestine, and communicate with t/ the veins, forming also in their course several glandularmasses, as seen on a portion of intestine connected with a vein(fig. 189), and it is not until thus taken up and mingled withthe circulating blood that any of our food really becomes apart of the living body. Thus freed of the nutritive portionof the food, the residue of the product of digestion passes onto the large intestine, from whence it is expelled in the formof excrement. § 334. The organs above described constitute the most es-sential for the process of digestion, and are found more or lessdeveloped in afl. but some of the radiated animals ; but thereare, in the higher animals, several additional ones for aiding inth
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1870
