Question:
The parasympathetic nervous system has an inhibitory effect on most organs. However, certain activities which are inhibited by the sympathetic system are accelerated by the parasympathetic system. Which of the following set of activities is accelerated by the parasympathetic system?
The parasympathetic nervous system has an inhibitory effect on most organs. However, certain activities which are inhibited by the sympathetic system are accelerated by the parasympathetic system. Which of the following set of activities is accelerated by the parasympathetic system?
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Parasympathetic action speeds pupil constriction, peristalsis and micturition, but lowers heart rate and blood pressure.
Updated On: Nov 12, 2026
- Constriction of pupil, Peristalsis and Micturition.
- Heart rate, Arterial Blood pressure, Micturition.
- Peristalsis, Arterial Blood pressure, Constriction of pupil.
- Heart rate, Peristalsis and Micturition.
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
The parasympathetic system works for rest and digest and is mostly opposite to the sympathetic system.
Step 2: Sort the activities
Pupil constriction, peristalsis and micturition are increased by parasympathetic action and reduced by sympathetic action.
Heart rate and arterial blood pressure are raised by the sympathetic system and lowered by the parasympathetic system.
Step 3: Conclusion
The set accelerated by the parasympathetic system is constriction of pupil, peristalsis and micturition.
Final Answer:
Pupil constriction, peristalsis and micturition are accelerated. \[ \boxed{\text{(A) }\text{Constriction of pupil, Peristalsis and Micturition.}} \]
The parasympathetic system works for rest and digest and is mostly opposite to the sympathetic system.
Step 2: Sort the activities
Pupil constriction, peristalsis and micturition are increased by parasympathetic action and reduced by sympathetic action.
Heart rate and arterial blood pressure are raised by the sympathetic system and lowered by the parasympathetic system.
Step 3: Conclusion
The set accelerated by the parasympathetic system is constriction of pupil, peristalsis and micturition.
Final Answer:
Pupil constriction, peristalsis and micturition are accelerated. \[ \boxed{\text{(A) }\text{Constriction of pupil, Peristalsis and Micturition.}} \]
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