The respiratory centre of the brain is sensitive to:

Identify the region of human brain which has the pneumotaxic centre that alters respiratory rate by reducing the duration of inspiration.

The nerve impulses which stimulate the intercostal muscles and diaphragm and thus permit breathing, originate in the

Receptors associated with the aortic arch and carotid artery can recognize the changes in $A$ and $H^{+}$ concentration and send necessary signals to the $B$ for remedial actions. Select the right choice for $A$ and $B$ to complete the given $NCERT$ statement.

What happens to respiration when the concentration of $CO_2$ increases in the blood?

In a state of fever,the respiratory rate.......