★ Body Fluids & Circulation Quiz
How do parasympathetic neural signals affect the working of the heart?
A. Reduce both heart rate & cardiac output
B. Heart rate is increased without affecting cardiac output
C. Both the heart rate & cardiac output increase
D. Heart rate decreases but cardiac output increases
Preview next quiz:
The heart beat is maximum in.
A. Adult males
B. Foetus
C. Elderly people
D. Adult females
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