Does the baroreceptor-heart rate reflex indicate the capacity of the arterial baroreceptors to control blood pressure?
1. We have examined the question asked in the title by studying: the carotid baroreceptor reflex in man with a variable-pressure neck chamber; the carotid baroreceptor reflex in conscious rabbits with a variable-pressure capsule around the carotid bifurcation; and the barorecptor-heart rate reflex. 2. At rest, the association between the sensitivities of the carotid baroreceptor-blood pressure and -heart rate reflexes, and of these with the baroreceptor-heart rate reflex, is weak. Exercise causes dissociation between control of blood pressure and heart rate. In hypertension, depression of the baroreceptor-heart rate reflex does not reflect the altered characterisitics of the carotid sinus-blood pressure reflex.
Related Questions
- I have to control the pulse rate of my cardiac pacemaker very accurately. Can I use the pulse result of the Microlife blood pressure monitor for this?
- Traffic control plans phase 6B and 6C indicate a need for temporary traffic barriers. How will the contractor be paid for temporary traffic barriers?
- WHAT DO BLOOD PRESSURE NUMBERS INDICATE?
