Biology · Human Respiratory System
In a standard 5-second normal quiet respiratory cycle at rest, what is the approximate time distribution allocated to active inspiration and passive expiration?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Inspiration takes 2 seconds; Expiration takes 3 seconds✓
- 2Inspiration takes 3 seconds; Expiration takes 2 seconds
- 3Inspiration takes 1 second; Expiration takes 4 seconds
- 4Inspiration takes 4 seconds; Expiration takes 1 second
Correct answer
Inspiration takes 2 seconds; Expiration takes 3 seconds
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