name four factors affecting alveolar capillary gas exchange?

Answer 1

1- Blood Supply to individual Alveolus (perfusion).

2- Surface Area of each Alveolus

3- Thickness of the walls of each Alveolus

4- Pressure gradient of gases across the Alveolar Membrane

5- Moisture of inspired air (throat normally add 6.3KPa of Water to allow gases to dissolve)

Perhaps number 1 does not apply to you because you are already assuming a good bloood supply in your question

Answer 2

Factors Affecting Gas Exchange