Question

If someone wants to hold his own breath, they can’t hold for a very long time because:

• A. Decreasing levels of pCO${}_2$ and H${}^{+}$ in blood stimulate the expiratory area in brain
• B. Decreasing levels of pCO${}_2$ in blood stimulates the inspiratory area in brain
• C. Rise in blood pCO${}_2$ and H${}^{+}$ concentration stimulates the inspiratory area in brain
• D. Elevation of pO${}_2$ and H${}^{+}$, and decrease in pCO${}_2$ level of blood, all stimulate the inspiratory area in brain.

Answer 1

The correct option is C Rise in blood pCO${}_2$ and H${}^{+}$ concentration stimulates the inspiratory area in brain

If someone wants to hold his own breath, they can’t hold for a very long time because rise in blood pCO${}_2$ and
H${}^{+}$ concentration stimulates the inspiratory area in brain.