Abstract
In the urethanized, fasting (for two days) cats, whose vagi were cut in the neck and the inferior and stellate ganglia removed bilaterally, one seventh, one fifth or one third of the total blood volume was bled; as a consequence an acceleration resulted in the beat rate of the denervated heart and seemingly the greater the haemorrhage, the greater also the acceleration.
These results indicate highly probably that bleeding produces in urethanized cats an increased output of epinephrine.
