Solved UPSC CDS/OTA Question
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Q · Respiratory System medium · 45s
What is the driving force for pulmonary capillary filtration?
TopicRespiratory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Net filtration in pulmonary capillaries is the balance between hydrostatic pressure pushing fluid out and oncotic pressure pulling fluid in. Small hydrostatic advantage facilitates fluid exchange.
Final Answer: Option A - Hydrostatic pressure difference