Physiology Which of the following is true about ventilation and perfusion in alveoli in an erect posture A Ventilation/perfusion ratio is maximum at apex B Ventilation/perfusion ratio is maximum at base C Ventilation is maximum at apex D Perfusion is maximum at apex 💡 Explanation Which of the following is true about ventilation and perfusion in alveoli in an erect posture ✓ Correct Answer: A. Ventilation/perfusion ratio is maximum at apex