HardZoologyBody fluid and circulation
+4 / -1
Sympathetic neural signals can:
A
Decrease the heart rate
B
Increase the heart rate and strength of ventricular contraction
C
Decrease the cardiac output
D
Have no effect on the heart
Explanation
Sympathetic stimulation (fight or flight) increases both the rate of the heartbeat and the force of contraction, thereby increasing cardiac output.
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