Q. How do parasympathetic neural signals affect the working of the heart ?
A) Reduce both heart rate and cardiac output
B) Heart rate is increased without affecting the cardiac output.
C) Both heart rate and cardiac output increase
D) Heart rate decreases but cardiac output increases.
Explanation
[Solution] Parasympathetic (vagal) stimulation slows the heart and reduces cardiac output. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.