Abstract
Simultaneous records have been made of blood pressure and rhythmic contractions of the main artery of the ear in rabbits and dogs. When vasomotor waves appear on the blood pressure record they are synchronous with rhythmic contractions and dilatations in the artery of the ear. These vasomotor changes in the ears are undoubtedly only part of the vascular changes in the body which are responsible for the blood pressure variations. Studies were made on the inhibitory effect of anesthetics and the stimulating effect of morphine on rhythmic contractions.

This publication has 3 references indexed in Scilit: