The respiratory centre of the brain is sensit | vedclass

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(B) The correct answer is $B$. $A$ chemosensitive area is located adjacent to the respiratory rhythm centre in the medulla oblongata. This area is hig

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Higher $CO_2$ concentration in blood

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(B) The correct answer is $B$. $A$ chemosensitive area is located adjacent to the respiratory rhythm centre in the medulla oblongata. This area is highly sensitive to changes in the partial pressure of carbon dioxide $({P_{CO_2}})$ and hydrogen ion concentration $(pH)$ in the blood. An increase in ${P_{CO_2}}$ or a decrease in $pH$ activates this centre,which in turn signals the rhythm centre to make necessary adjustments in the respiratory process to eliminate excess $CO_2$.

The respiratory centre of the brain is sensitive to:

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