Question

A decrease in arterial PO2 stimulates increased ventilation by causing increased firing of action potentials in the afferent neurons from the carotid and aortic body chemoreceptors.

a-true
b-false

Answer 1

A decrease in arterial PO2 stimulates increased ventilation by causing increased firing of action potentials in the afferent neurons from the carotid and aortic body chemoreceptors.

Step-by-step explanation:

A decrease in arterial PO2 stimulates increased ventilation by causing increased firing of action potentials in the afferent neurons from the carotid and aortic body chemoreceptors. This statement is true.

The chemoreceptors in the carotid and aortic bodies are responsible for detecting changes in the oxygen levels in the blood. When arterial PO2 decreases, these chemoreceptors are stimulated, leading to increased firing of action potentials in the afferent neurons. This, in turn, triggers an increase in ventilation to compensate for the low oxygen levels.