Question

explain how inhalation and exhalation happens

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

Answer: ...During inhalation lungs expand with air and oxygen diffusses across the lungs surface entering the bloodstream

During exhalation the lungs expel air and lungs volume decreases....during exhalation the diaphragm is relaxed which decreases the volume of the lungs cavity.......

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