A resting adult breathes 12 times per minute with a tidal volume of 500 cm³. What is the pulmonary (minute) ventilation?
Correct answer A. 6000 cm³ per minute
Explanation
Pulmonary ventilation = tidal volume × breathing rate = 500 cm³ × 12 min⁻¹ = 6000 cm³ per minute, which is 6 dm³ of air per minute.
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