Explain the process by which inhalation occurs during breathing in hum

1.	Explain the process by which inhalation occurs during breathing in human beings?
Answer» Breathing consists of two phases called inhalation and exhalation, it richs air comes out of the body. It occurs when the diaphragm moves up and the chest cavity becomes narrower. This creates a pressure on the air inside the lungs. As a result the air comes out of the lungs to the atmosphere due to lack of space inside. During this process, the chest wall expands out and away from the lungs.

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