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Get Answers to all your Questions
How do parasympathetic neural signals affect the working of the heart?
- Option 1)
Reduce both heart rate and cardiac output.
- Option 2)
Heart rate is increased without affecting the cardiac output.
- Option 3)
Both heart rate and cardiac output increase
- Option 4)
Heart rate decreases but cardiac output increases.
Answers (1)
As learnt in
Factors affecting Cardiac Output -
Parasympathetic neural signals (another component of ANS) decrease the rate of heart beat, speed of conduction of action potential and thereby the cardiac output.
-
Option 1)
Reduce both heart rate and cardiac output.
This option is correct
Option 2)
Heart rate is increased without affecting the cardiac output.
This option is incorrect
Option 3)
Both heart rate and cardiac output increase
This option is incorrect
Option 4)
Heart rate decreases but cardiac output increases.
This option is incorrect
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