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.Management Sciences
Category: Respiratory System
The oxygen tension of the mixed venous blood is______________?
0
A. 25 mm Hg
B. 40 mm Hg
C. 55 mm Hg
D. 70 mm Hg
Ventilation perfusion ratio is maximum in_______________?
A. Base of lung
B. Apex of lung
C. Posterior lobe of lung
D. Middle lobe of lung
Normal intrapleural pressure during the start of inspiration is _________ mm of Hg?
A. -2
B. -5
C. 0
D. -7
An important non- respiratory function of lungs is_____________?
A. Anion balance
B. Sodium balance
C. Potassium balance
D. Ca+2 balance
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