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Monday, October 29, 2012

WHAT PHYSIOLOGICAL SIGNALS IN THE HEART CHANGE SYSTOLIC BLOOD PRESSURE WITH EXERCISE?


Sympathetic nerves During exercise the sympathetic nervous system is stimulated. The catecholamines released as well as direct stimulation on the heart result in a faster heart rate as well as increased contractility which raises cardiac output. This increases the rate of volume/pressure rise into the vasculature (dp/dt). This increases BP.

POSTED BY:  STEVEN AJLUNI, MD

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