Which of the following is not possible when pneumotaxiccentre is sending a strong signal?

Increase in rate of breathing

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Complete filling of lungs

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Decreased duration of inspiration

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Decreased duration of expiration.

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Solution

The correct option is B
Complete filling of lungs

Pneumotaxiccentre is present in the pons and controls the switch point of inspiration. When sending a weak signal, inspiration lasts for 5s causing complete filling of the lungs. When sending a strong signal, the rate of breathing increase i.e., the duration of inspiration and expiration decreases and complete filling of lungs is not possible.

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Similar questions

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

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)____.

Q. Fill in the blanks with approriate words.
After deep inspiration, capacity of maximum expiration of lungs is called ..........

Which of the following is not possible when the pneumotaxic centre is sending a strong signal?

After deep inspiration, maximum expiration of lungs is called

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