File:Rational hydrotherapy - a manual of the physiological and therapeutic effects of hydriatic procedures, and the technique of their application in the treatment of disease (1902) (14596788659).jpg

Identifier: rationalhydrothe00kell (find matches)
Title: Rational hydrotherapy : a manual of the physiological and therapeutic effects of hydriatic procedures, and the technique of their application in the treatment of disease
Year: 1902 (1900s)
Authors: Kellogg, John Harvey, 1852-1943
Subjects: Hydrotherapy Hydrotherapy
Publisher: Philadelphia, : F.A. Davis Co.
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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relieve the venous circulation of the duode-num and the colon through diversion of blood from the renalvein into the veins which accompany the branches of therenal artery distributed to the suprarenal capsule, the capsuleof the kidney, and the overlying muscles. 1277 TJie Portal Circulation.— The portal veins contain ncvalves. This makes it possible for this appendage of thevenous system to render the most valuable service as a bloodreservoir, the capacity of which may be very easily andquickly varied, thus constituting a regulating or balancingmechanism whereby the delicate structures of the body aresaved from injuries which they might otherwise suffer fromsudden or excessive increase or diminution of the blood pres-sure. There is maintained a constant balance between the S 0 3 0 g S n •1 B (1 rr n R 3 3 3 3 0) 3 B e. ^. 3 ;^ o ^ n n> ft 3 tn B 5 > ^ ^ i i-.- 3 < B o 3- w ni5- ^ C^ n -r^ 3
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THE TECHNIQUE OF HYDROTHERAPY. 741 intra-abdominal pressure and the general blood pressure.Even the volume of gases in the intestines and the tensionof the abdominal muscles influence the blood pressure. Thegreat splanchnic nerve is, through its control of the portalcirculation, one of the most important factors in the blood-pressure-controlling mechanism of the body; it especiallyinfluences the cerebral circulation. The study of the relations of the portal system to the 1278general venous system and to the blood distribution of theskin, is exceedingly interesting, and of high practical value.The blood gathered up by the portal vein from the stomach,intestines, spleen, pancreas, and gall-bladder, in the main findsits way back into the general venous system only after it haspassed through a second capillary network in the liver, fromwhich it is gathered up, and conveyed to the ascending venacava by the hepatic veins. There are, however, other chan-nels well known to anatomists, of grea

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