Pulmonary Ventilation Flashcards by Lady Bug

Q

how much air is inspired

A

around 500mL

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Q

why is 500mL of air inspired

A

due to a decrease in Ppul of about 1mmHg compared to Patm

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Q

how much air is expired

A

around 500mL

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Q

what type of process is expiration

A

a passive process

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Q

what does expiration lead to

A

Ppul to be 1mmHg greater than Patm

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Q

why is a negative Pip maintained throughout

A

to avoid lung collapse

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