NEET Solved Paper 2014 Question 61
Question: How do parasympathetic neural signals affect the working of the heart? [AIPMT 2014]
Options:
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
Show Answer
Answer:
Correct Answer: A
Solution:
- Parasympathetic neural signal reduces both heart rate and cardiac output, through the post ganglionic fibres. These fibres are very short, and are cholinergic in nature.
