Which of the Following Is Not an Effect of Sympathetic

question 35

Multiple Choice

Which of the following is not an effect of sympathetic stimulation of the heart?

• A)It increases heart rate
• B)It decreases the duration of systole
• C)It decreases the slope of the pacemaker potential
• D)It increases the amount of calcium ion entering cardiac cells
• E)It increases the rate of cross-bridge cycling in ventricular cells

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