On Disorders Of Assimilation, Digestion, Etc. (1901) (Paperback)

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: SECTION II. (British Medical Journal, January 10, 1874.) The second great function of the liver is to give out, during fasting, the nutriment which it has stored up during digestion. This is effected by the glycogen, which has been stored up in the organ, becoming gradually transformed into sugar again. It is then washed out of the liver by the blood and carried with it into the general circulation. The conversion of glycogen into sugar is effected by means of a diastatic ferment, of which a minute quantity only is present in the liver itself, but which is contained to a much larger amount in the blood. When the flow of blood through the liver is slow, the transformation of glycogen goes on gradually, but it is quickened whenever the current becomes more rapid. It seems probable that, although the blood of the portal vein may have something to do with the transformation of glycogen into sugar, this process is more closely connected with the circulation through the hepatic artery; for those lesions of the nervous system which increase the flow of blood through the liver and induce diabetes, have, according to Cyon,1 little influence over the calibre of the vein, but cause the artery to dilate widely. As the blood from the artery flows into the portal vein, any increase in the circulation within it also quickens that in the vein to some extent. The circulation in the liver may be increased either by raising the pressure of blood in the arteries generally, so that the blood flows more quickly through the hepatic artery, although its size may remain the same as before, or by causing it to dilate, so that it receives a greater share of blood, while the pressure in the arteries generally remains the same. 1 Cyon and Aladoff. Reprint from the Melanges Biologiquts (which Professo...

General

Imprint:	Kessinger Publishing Co
Country of origin:	United States
Release date:	December 2009
First published:	December 2009
Authors:	Thomas Lauder Brunton
Dimensions:	229 x 152 x 27mm (L x W x T)
Format:	Paperback - Trade
Pages:	522
ISBN-13:	978-1-120-74881-2
Categories:	Books > Language & Literature > Literature: texts > Collections & anthologies of various literary forms
LSN:	1-120-74881-X
Barcode:	9781120748812

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