VII. On stasis of the blood, and exudation

Abstract

Confusion has been introduced into the question of stasis, as related to inflammation, by neglecting to discriminate between the various forms of stasis, of which there are four. 1. If the frog’s web be exposed to certain irritants ( e. g . chloroform), the arteries are so constricted that the heart-force is temporarily shut off from the capillaries, which become packed by the reflux of blood from the veins. This form of stasis is dissipated immediately on the cessation of the arterial constriction. The blueness of the extremities consequent upon exposure to cold is probably dependent on the same mechanism.