In a resting typical person, there is Mean Arterial Pressure…
In a resting typical person, there is Mean Arterial Pressure (MAP) being detected by the baroreceptors. The baroreceptors have a resting frequency of afferent action potentials to the brainstem nuclei: parasympathetic CI, sympathetic CA and VM. At rest, the baroreceptors ensure that parasympathetic CI is ON, sympathetic CA is OFF, and sympathetic VM is half on. If a drug blocked the production of baroreceptor action potentials in a resting typical person, what effect would there be relative to baseline activity?