Question

1. Explain the mechanism of inhalation.
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Answer 1

Answer:

During inhalation, the lungs expand with air and oxygen diffuses across the lung's surface, entering the bloodstream. During exhalation, the lungs expel air and lung volume decreases. ... During exhalation, the diaphragm is relaxed which decreases the volume of the lung cavity.

Answer 2

Explanation:

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