NEET2014Zoology-Neural Control and Coordination
NEET 2014 Zoology Autonomic Nervous System MCQ Question
Type: MCQ-conceptual-Medium-Class 11
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.
Correct Answer
Option A
Detailed Explanation
Parasympathetic signals, primarily through the vagus nerve, decrease heart rate and cardiac output by reducing the force of contraction.
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