Question

what is the normal percentage composition of gases inspired and expired air respectively

Answer 1

Answer:

Composition. Inhaled air is by volume 78.08% nitrogen, 20.95% oxygen and small amounts include argon, carbon dioxide, neon, helium, and hydrogen. The gas exhaled is 4% to 5% by volume of carbon dioxide, about a 100 fold increase over the inhaled amount.

Explanation:

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