Question

Which group of lung breather exhibit complete ventilation and why

Answer 1

Answer:

Ventilation is 50% greater at the base of the lung than at the apex.

The weight of fluid in the pleural cavity increases the intrapleural pressure at the base to a less negative value.

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Answer 2

Answer:

Aves exhibit the complete ventilation.

Explanation:

As a result of Aves higher oxygen consumption at rest than all other vertebrates, including mammals, and their significantly higher oxygen consumption during flight, birds must be able to exchange gases at high rates.

Aves lungs maintain a fixed volume rather than expanding and contracting. Additionally, unlike other animals with lungs, which have a tidal, bidirectional flow, the lungs in humans are evacuated in just one way. And the deeper and faster breathing of the Aves contributes to the increased ventilation. Therefore, Aves exhibit complete ventilation.

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