In zone 3 of the lung

Name: In zone 3 of the lung
Brand: Quizplus
Rating: 4.9 (46 reviews)

Question

Quizplus · Accepted Answer

In zone 3 of the lung, the alveolar pressure is higher than both the arterial and venous pressure, which causes compression of the capillaries. This compression leads to decreased blood flow and increased dead space. However, despite the higher alveolar pressure, the greatest blood flow occurs in this zone due to gravity-dependent factors. Therefore, choice D is the best answer.

In Zone 3 of the Lung