Zoology - Breathing and Exchange of Gases Question with Solution | TestHub

Regulation of Respiration

- Neural system maintains respiratory rhythm of body according to the body needs via following parts of brain :

$1.$Medulla : It possess :

$\mathbf{A}.$Respiratory rhythm centre - It is primarily responsible for regulation of respiratory rhythm.

$\mathbf{B}.$Chemosensitive area - It is situated adjacent to the Respiratory rhythm centre. Increase in$\mathrm{C}{\mathrm{O}}_2$and${\mathrm{H}}^{+}$concentration$\to$Stimulation of Chemosensitive area$\to$Sends signal to the Respiratory rhythm centre to make necessary changes in the respiratory process for the elimination of these substances.

$2.$Pons: It possess pneumotaxic centre, that moderates the functions of the respiratory rhythm centre. Stimulation of this centre alters the respiratory rate by reducing the duration of inspiration.