I. The `pO_(2)` in alveolar air is about ….A…. Mm Hg and in arterial capillaries is …..B…… mm Hg. Therefore, oxygen from alveoli diffuses into blood capillaries.
II. ` pCO_(2)` in blood reaching alveolar capillaries is …..C…. Mm Hg and in alveolar air is .....D..... mm Hg. thus, `CO_(2)` leaves capillaries and reaches alveoli.
Identify A,B,C and D in the above two statements .
A. 104, 40, 45, 40
B. 40 , 104, 40, 45
C. 40, 45, 104, 40
D. 45, 104, 45, 40
