A mountaineer starts a journey from sea level and flies in a pressurised plane. She gets out at an altitude that causes her arterial PO2 to fall to 60mmHg. Which of the following best describes her body’s response during the next hour?

Question

A mountaineer starts a journey from sea level and flies in a pressurised plane. She gets out at an altitude that causes her arterial PO2 to fall to 60mmHg.  Which of the following best describes her body’s response during the next hour?

Accepted Answer

Carotid body chemoreceptors stimulated, ventilation increased

Answer

Medullary chemoreceptors inhibited, ventilation increased

Answer

Peripheral chemoreceptors stimulated, ventilation reduced.

Answer

Central baroreceptors stimulated, ventilation increased

Crowdly

A mountaineer starts a journey from sea level and flies in a pressurised plane. ...

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