Topics:
Animal Physiology, Animal Refresher
Function of Apneustic Centre
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Question (English)
Apneustic centre controls:
- Normal inspiration
- Forceful expiration
- Deep inspiration (apneusis) ✓ Correct
- Inhibits inspiration
Explanation:
Correct Answer: Deep inspiration (apneusis)
The Apneustic centre, located in the lower pons, is associated with deep inspiration (apneusis) — a prolonged inspiratory gasp with brief expiration.
All Respiratory Centres
| Centre | Location | Function |
|---|---|---|
| Dorsal Respiratory Group (DRG) | Dorsal medulla oblongata | Primary inspiration; generates basic breathing rhythm |
| Ventral Respiratory Group (VRG) | Ventral medulla oblongata | Primarily responsible for expiration (forced expiration) |
| Pneumotaxic centre | Upper pons | Terminates inspiration; regulates inspiratory volume and respiratory rate |
| Apneustic centre | Lower pons | Deep inspiration / apneusis ✔ |
Mnemonic for Pons Centres
'P'neumotaxic = Pons upper (Pauses/stops inspiration); Apneustic = Amplifies inspiration (lower pons)
📚 About this Topic — Animal Physiology
This multiple choice question is from Animal Physiology, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Physiology to strengthen your preparation.
