The pressure within the alveoli will never reach a pressure equal to that of atmospheric air.
a. false
b. true

The correct answer will be option false.

Explanation:

The pressure between alveoli is known as alveolar pressure or intra-pulmonary pressure.

During inspiration, alveolar pressure reaches below the atmospheric pressure due to increase in the thoracic volume which again equals the atmospheric pressure at the end of inspiration and similarly during expiration, the alveolar pressure increase which again attains equilibrium with at the end of expiration.

Therefore, at the end of inspiration and expiration, the intra-pulmonary pressure equals the atmospheric pressure hence, false is the correct option.

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