The Relationship Between Arterial Perfusion and Alveolar Gas Pressure at the Base

Multiple Choice

The relationship between arterial perfusion and alveolar gas pressure at the base of the lungs is best described as:

A) alveolar gas pressure exceeds arterial perfusion pressure.
B) arterial perfusion pressure and alveolar gas pressure are less than at the apex.
C) arterial perfusion pressure exceeds alveolar gas pressure.
D) alveolar gas pressure and arterial perfusion pressure are equal.