Practice question

Pick C: ERV + RV. Thinking about Lung Volumes, Capacities and Regulation in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: the functional job described in the stem is exactly what ERV + RV does in Lung Volumes, Capacities and Regulation. Hence ERV + RV is correct. Treat this as a building block for the rest of Lung Volumes, Capacities and Regulation; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.