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- Regulation of Respiration MCQ - Practice Questions with Answers
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21 Questions around this concept.
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EASYRespiratory centres are found to be located in
Concepts Covered - 1
Regulation of Respiration
- The respiratory centre is composed of group of neurons located in the medulla oblongata and pons varolii.
- Therefore, the respiratory centre is divided into medullary and pons respiratory centres.
- Excess CO2 or hydrogen ions stimulate the respiratory centres of the brain and increase the inspiratory and expiratory signals to the respiratory muscles.
Medullary Respiratory Centres:
- Dorsal Respiratory Centres (DRC): It is located in the dorsal portion of the medulla oblongata. It causes inspiration.
- Ventral Respiratory Centres (VRC): It can cause both inspiration and expiration.
Pons Respiratory Centres:
- Pneumotaxic centre: It is located in the ventrolateral part of the medulla oblongata. Its function is to limit inspiration.
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Regulation of Respiration
Biology Textbook for Class XI
Page No. : 275
Line : 15
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