Practice question
Question
Hyperventilation causes arterial PCO2 to:
Explanation
Go with C — Decrease. Within Lung Volumes, Capacities and Regulation, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, Decrease is the option that correctly names the structure, process, or principle asked for in Lung Volumes, Capacities and Regulation. Holding that picture in mind makes Decrease feel natural rather than something you only memorise. Link the term to a real body example (organ, tissue, or ion flow) so the idea stays concrete under exam pressure. A short mental diagram helps — start from stimulus or structure, follow the pathway, and stop at the functional result described by Decrease.