Cardiac activity could be moderated by the autonomous neural system. Tick the correct answer:

The parasympathetic system stimulates heart rate and stroke volume

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The sympathetic system stimulates heart rate and stroke volume

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The parasympathetic system decreases the heart rate but increase stroke volume

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The sympathetic system decreases the heart rate but increase stroke volume

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Solution

The correct option is B
The sympathetic system stimulates heart rate and stroke volume

In the opposite way, the parasympathetic nervous system can decrease the heart rate, which decreases the cardiac output. The stroke volume can also be increased or decreased. ... The end-systolic volume is defined as the amount of blood remaining in the ventricles after contraction.

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Similar questions

The cardiac activity could be moderated by the autonomous neural system.
Tick the correct answer.
(a) The parasympathetic system stimulates heart rate and stroke volume
(b) The sympathetic system stimulates heart rate and stroke volume
(c) The parasympathetic system decrease the heart rate but increase stroke volume
(d) The sympathetic system decreases the heart rate but increases stroke volume

Q. Statement 1: Parasympathetic neural system increases the rate of heart beat.
Statement 2: Sympathetic neural system decreases the rate of heart beat.

Q. Which of the following is an incorrect match?
1) Cardiac output - Stroke volume X heart rate.
2) Heart of Frog - Neurogenic.
3) Heart sound Lubb - closure of atrio-ventricular valves.
4) Epinephrine - decreases heart rate.

Q. In a cardiac cycle, if the stroke volume is 70 ml and heart rate is 72 beats/min, the cardiac output is

Q. State whether the following statements are true or false.
Cardiac output would increase through either an increase in heart rate or a rise in stroke volume.

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