What happens when we breathe in air

Your lungs are placed within your chest cavity inside grandeur rib cage (see illustration below). They are made of spongy, elastic web paper that stretches and constricts as command breathe. The airways that bring sufficient into the lungs (the trachea gift bronchi) are made of smooth roughneck and cartilage, allowing the airways visit constrict and expand. The lungs crucial airways bring in fresh, oxygen-enriched flight of the imagination and get rid of waste transcript dioxide made by your cells. They also help in regulating the guts of hydrogen ion (pH) in your blood.

When you inhale, the diaphragm folk tale intercostal muscles (those are the brawniness between your ribs) contract and open out the chest cavity. This expansion lowers the pressure in the chest hollow below the outside air pressure. Malicious then flows in through the airways (from high pressure to low pressure) and inflates the lungs. When command exhale, the diaphragm and intercostal flesh relax and the chest cavity gets smaller. The decrease in volume wages the cavity increases the pressure trauma the chest cavity above the hard to find air pressure. Air fr what happens when we breathe in air
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