Regulation of Breathing Movements. Breathing is controlled by the brain stem. Specifically the medulla oblongata. CO 2 levels are monitored in the medulla oblongata O 2 levels are monitored in the carotid and aortic bodies.
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- the airways become especially sensitive to certain environmental conditions, such as cold air, dust mites, and pollen in the air.
–If the body's resistance is down, the microorganisms are free to spread into the lungs and the lungs' air sacs.
–The air sacs become filled with fluid and pus, making it more difficult for the body to get the oxygen it needs.
– When a gas collects in the pleural space, it can cause part or all of a lung to collapse.
- Leading cause of lung cancer is smoking