Which receptors are stimulated by the drop in PaO₂ that occurs when lowlanders travel to high altitudes?
A) peripheral chemoreceptors
B) central chemoreceptors
C) proprioceptors
D) baroreceptors

Question

Quizplus · Accepted Answer

Peripheral chemoreceptors located in the carotid and aortic bodies are stimulated by the drop in PaO₂ that occurs when lowlanders travel to high altitudes. These receptors detect changes in arterial oxygen tension and send signals to the brainstem to stimulate ventilation, which helps increase oxygen delivery to tissues. Central chemoreceptors, proprioceptors, and baroreceptors are not directly involved in this process.

Which Receptors Are Stimulated by the Drop in PaO₂ That