. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. luids' of the Bile must |>n; the pig- Jrnd the cho- I prooeases, ao >f bile as a they ooiuist may be ob- jtting from a I and aloohol,t (cholio) acid cholalio acid In. made artifl- un nitrogen, n of the bile 9 glycin and Bed afresh in lot definitely bile is owing »d either as >ri8ms. It is l>ut partially Eirge. part of rthy salts in the natural en a drop of DIGESTION O
. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. luids' of the Bile must |>n; the pig- Jrnd the cho- I prooeases, ao >f bile as a they ooiuist may be ob- jtting from a I and aloohol,t (cholio) acid cholalio acid In. made artifl- un nitrogen, n of the bile 9 glycin and Bed afresh in lot definitely bile is owing »d either as >ri8ms. It is l>ut partially Eirge. part of rthy salts in the natural en a drop of DIGESTION OP POOD. sro8 nitric acid, oontainiug nitrous acid, is added to bile, it under- goes a series of color changes in' a certain tolerably constant order, becoming green, greenish-Uue, blue, violet, a brick red, and finally yellow ; thou^^'h the green is the most characteristic and permanent Bach one oi these represents a distinct stage of the oxidation of bilinibin, the green answering to biliverdin. Such is Gmelin's test for bile-pigments, by which they may be detected in' urine or other fluids. The absence of proteids in bile is to be noted. The DigcitiT* Aotion of Bile.—l. So far as known, its action ' on proteids is nil. When bile is added to the products of an artificial gastric digestion, bile-salts, peptone, pepsin, and para- peptone are precipitated and redissolved by excess. 8. It is slightly solyent of fats, though an emulsion made with bile is ?ery feeble. Bht it is likely helpful to pancreatic juice, or more efficient itself when the latter is present With free fatty acids it forms soaps, which themselves help in emulsifying fat 3. Membranes wet with bile allow fats to pass mere readily;* hence it is inferred that bile assists in absorption. 4. When bile is not poured out into the alimentary canal the foces become clay-odlored and ill-smelling, foul gases being secreted in abundance, so that it would seem that bile exercises an anti- septic influence. It may limit
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