PATHOLOGY MCQ
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The normal oxygen content of inhaled air is approximately
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0.04%
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21%
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79%
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100%
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Explanation:
Detailed explanation-1: -Inhaled air is a mixture of different gases present in the atmosphere. It contains around 78% nitrogen, 21% oxygen, 0.04% of carbon dioxide and other gases.
Detailed explanation-2: -Inhaled air contains more oxygen used to create energy and less CO2. It contains 21% O2, 0.04% CO2 and 79% Nitrogen. Thus, option A is correct.
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