How do parasympathetic neural signals affect the working of the heart ?

1. A. Reduce both heart rate and cardiac output.
2. B. Heart rate is increased without affecting the cardiac output.
3. C. Both heart rate and cardiac output increase.
4. D. Heart rate decreases but cardiac output increases.

Attempt this NEET 2014 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.