This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 Excerpt: ...during the act of tryptic digestion, and this supposition was borne out by the extraordinary readiness of artificial pancreatic digestions to undergo putrefaction when not protected in some way. Two recent cases1 of fistula of the ileum at its junction with the colon in human beings have given opportunity for exact ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 Excerpt: ...during the act of tryptic digestion, and this supposition was borne out by the extraordinary readiness of artificial pancreatic digestions to undergo putrefaction when not protected in some way. Two recent cases1 of fistula of the ileum at its junction with the colon in human beings have given opportunity for exact study of the contents of the small intestine. The results are interesting, and to a certain extent are opposed to the preconceived notions as to reaction and proteid putrefaction which have just been stated. They show that the contents of the intestine at the point where they are about to pass into the large intestine are acid, provided a mixed diet is used, the acidity being due to organic acids (acetic) and being equal to 0.1 per cent, acetic acid. These acids must have come from the bacterial fer-. mentation of the carbohydrates, and a number of bacteria capable of producing such fermentation were isolated. The products of bacterial putrefaction of the proteids, on the contrary, were absent, and it has been suggested that the acid reaction produced by the fermentation of the carbohydrates serves the useful purpose, under normal conditions, of preventing the putrefaction of the proteids. With reference, therefore, to the point we are discussing--namely, the bacterial decomposition of the contents of the intestines--we may conclude, upon the evidence furnished by these two cases, that in the human being, when living on a mixed diet, some of the carbohydrates undergo bacterial decomposition in the small intestine, but that the proteids are protected. We may further suppose that in the case of the proteids the limits of protection are easily overstepped, and that such a condition as a large excess of proteid in the diet or a deficient absorption f...
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Seller's Description:
Good. Book Interior is very good; cover has edgewear and some warping of the cloth cover along the rear spine-edge. Volume II of this late 19th century physiology text, fully illustrated, with several contributing authors. Vol. II covers muscle and nerve; central nervous system; the special senses; special muscular mechanisms; and reproduction.
