Respiratory System - Numerical Applications
Q. How many liters of air does an average adult inhale in a minute at rest?
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A.
4-6 L
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B.
6-8 L
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C.
8-10 L
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D.
10-12 L
Solution
An average adult inhales about 4-6 liters of air per minute at rest.
Correct Answer: A — 4-6 L
Q. How much air is typically exhaled in a single breath during normal breathing?
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A.
200 mL
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B.
500 mL
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C.
1000 mL
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D.
1500 mL
Solution
During normal breathing, approximately 500 mL of air is exhaled in a single breath.
Correct Answer: B — 500 mL
Q. How much carbon dioxide is typically exhaled in a single breath?
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A.
0.03%
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B.
4%
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C.
10%
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D.
15%
Solution
Typically, about 4% of exhaled air is carbon dioxide.
Correct Answer: B — 4%
Q. What is the average minute ventilation for a resting adult?
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A.
5-10 L
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B.
10-15 L
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C.
15-20 L
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D.
20-25 L
Solution
The average minute ventilation for a resting adult is about 5-10 liters.
Correct Answer: A — 5-10 L
Q. What is the average respiratory rate for a resting adult?
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A.
8-12 breaths/min
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B.
12-20 breaths/min
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C.
20-30 breaths/min
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D.
30-40 breaths/min
Solution
The average respiratory rate for a resting adult is about 12-20 breaths per minute.
Correct Answer: B — 12-20 breaths/min
Q. What is the average tidal volume in a healthy adult human?
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A.
250 mL
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B.
500 mL
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C.
750 mL
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D.
1000 mL
Solution
The average tidal volume in a healthy adult human is approximately 500 mL.
Correct Answer: B — 500 mL
Q. What is the total lung capacity of an average adult human?
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A.
3-4 L
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B.
4-6 L
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C.
6-8 L
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D.
8-10 L
Solution
The total lung capacity of an average adult human is approximately 4-6 liters.
Correct Answer: B — 4-6 L
Q. What is the vital capacity of an average adult human?
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A.
2-3 L
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B.
3-4 L
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C.
4-5 L
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D.
5-6 L
Solution
The vital capacity of an average adult human is approximately 4-5 liters.
Correct Answer: C — 4-5 L
Q. What percentage of oxygen is typically found in inhaled air?
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A.
10%
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B.
21%
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C.
30%
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D.
40%
Solution
Inhaled air typically contains about 21% oxygen.
Correct Answer: B — 21%
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