Physiology Concerning normal expiration during resting conditions: A Expiration is generated by the expiratory muscles B Alveolar pressure is less than atmospheric pressure C Intrapleural pressure gradually falls (becomes more negative) during the expiration D Flow velocity of the gas (in cm/sec) in the large airways exceeds that in the terminal bronchioles 💡 Explanation Concerning normal expiration during resting conditions: ✓ Correct Answer: D. Flow velocity of the gas (in cm/sec) in the large airways exceeds that in the terminal bronchioles