Parasympathetic stimulation decreases the heart rate by Decreasing permeability of SA node cells to Ca2+ increasing ion influx, thus increasing the rate of depolarization. Increasing the permeability of SA node cells to Ca2+. Increasing the permeability of SA (sinoatrial) node cells to K+.
Parasympathetic stimulation decreases the heart rate by Decreasing permeability of SA node cells to Ca2+ increasing ion influx, thus increasing the rate of depolarization. Increasing the permeability of SA node cells to Ca2+. Increasing the permeability of SA (sinoatrial) node cells to K+.
Essentials of Pharmacology for Health Professions
7th Edition
ISBN:9781305441620
Author:WOODROW
Publisher:WOODROW
Chapter25: Cardiovascular Drugs
Section: Chapter Questions
Problem 18CRQ
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Question
Parasympathetic stimulation decreases the heart rate by
Decreasing permeability of SA node cells to Ca2+
increasing ion influx, thus increasing the rate of depolarization.
Increasing the permeability of SA node cells to Ca2+.
Increasing the permeability of SA (sinoatrial) node cells to K+.
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