Respiratory process is regulated by certain specialised centres in the brain. One of the following Listed centres can reduce the inspiratory duration upon stimulation.

(a) Medullary inspiratory centre

(b) Pneumotaxic centre

(c) Apneustic centre

(d) Chemosensitive centre

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Solution

(b) Pneumotaxic Centre Located in the dorsal part of pons varoli of the brain can reduce the duration of inspiration and thus alter the respiratory rate,

Apneuslic Centre Whereas is located in the lower part of pons varoli is responsible for promoting inspiration process.

Chemosensitive Centre is situated adjacent to the rhythm centre which is highly sensitive to $C O_{2}$ and hydrogen ions. Increase in $C O_{2}$ and $H^{+}$ in body and activates this centre for the elimiration of $C O_{2}$ and H

Medullary Inspiratory Centre is a specialised region present in medulla of the brain, and is primarily responsible for regulating the respiratory rhythm.

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Q. Respiratory process is regulated by certain specialised centres in the brain. One of the following listed centres can reduce the inspiratory duration upon stimulation.

Q. Respiration is regulated by certain specialised centres in the brain. One of the following listed centres can reduce the inspiratory duration upon stimulation:

Q. Fill up the blanks in the following paragraph by selecting the correct option.
Human beings have a significant ability to maintain and moderate the respiratory rhythm, to suit the demands of the body tissues. This is done by the neural system. A specialised centre present in the medulla region of the brain called ___(i)___ is primarily responsible for this regulation. Another centre present in the pons region of the brain called ___(ii)___ can moderate the functions of the respiratory rhythm centre. Neural signal from this centre can reduce the duration of ___(iii)___ and thereby alter the respiratory rate. A __(iv)__ is situated adjacent to the rhythm centre which is highly sensitive to

C O_{2}

and hydrogen ions.

Q. Assertion :Pneumotaxic centre, located in the medulla region of the brain, moderates the respiratory rhythm centre. Reason: Pneumotaxic centre controls the switch 'ON' point of inspiration.

The apneustic centre increases the depth of___(i)____ by acting directly on the ___(ii)____ centre. The pneumotaxic centre inhibits the ___(iii)____ centre, thus increasing the respiratory rate i.e the duration of inspiration and expiration___(iv)____.

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Respiratory process is regulated by certain specialised centres in the brain. One of the following Listed centres can reduce the inspiratory duration upon stimulation. (a) Medullary inspiratory centre (b) Pneumotaxic centre (c) Apneustic centre (d) Chemosensitive centre

Respiratory process is regulated by certain specialised centres in the brain. One of the following Listed centres can reduce the inspiratory duration upon stimulation.

(a) Medullary inspiratory centre

(b) Pneumotaxic centre

(c) Apneustic centre

(d) Chemosensitive centre