Abstract
Summary
1. Chnages in capillary ressistance resulting from 8 forms of stress were studied on dogs, guinea pigs and rabbits in order to integrate previous similar studies on the human being and the rat. 2. Immediate and late responses were investigated and essentially the same patterns of response found as previously described. A comparison of the results obtained on all five species studied shows that practically every pattern may occur in each of the 5 species, yet in each species certain patterns predominate. Thus, the species difference resolves itself into a difference in the incidence in which the various patterns occur. 3. Knowledge of the capillary stress response is indispensable in any clinical or experimental study in which capillary resistance is measured. 4. An evaluation of the five species is given as to their suitableness to and relative value in capillary resistance studies.
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