Compared to the atmospheric air, the alveolar air has

Options

A. more `pO_(2)` and less `pCO_(2)`
B. less `pO_(2)` and `pCO_(2)`
C. more `pO_(2)` and more `pCO_(2)`
D. less `pO_(2)` and less `pCO_(2)`

Answer

B

Explanation

Pressure gradient is essental for movement of gases in and out of the body.