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SOBRE OS EFEITOS VASOMOTÔRES EXERCIDOS PELA AGUA DISTILADA E PELAS SOLUÇÕES ANISOTONICAS DE CLORÊTO DE SODIO
Xavier, Antonio Augusto | Date Issued:
1939
Alternative title
Vaso-motricity induced by distilled water and anisotonic salt solutionsAuthor
Affilliation
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Abstract in Portuguese
Sobre os efeitos vasomotôres exercidos pela agua distilada e pelas soluções anisotonicas de clorêto de sodio
Abstract
The writer reports experiments done with distilled water and hypotonic and hypertonic salt solutions of definite osmotic concentrations. The experiments were performed according to the Laewen-Trendelenburg technic using the vascular system of the frog's hind legs, and according to the Pissemski-Krawkow method using the capillaries of the rabbit's ear. Both preparations react to distilled water by marked vaso-constriction, the same phenomenon taking place in the case of the hypotonic salt solutions. The lower the concentration pf the hypotonic salt solution the stronger the vaso-constriction obtained. With hypertonic salt solutions was observed a strong but rather transient vaso-dilatation followed by secondary vaso-constriction. The later results were found only in the experiments with the frog's hind legs.
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