respiratory system foldable parts and funtion. cilia (microscopic hairs) and mucus traps dirt,...
Post on 19-Dec-2015
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Cilia (microscopic hairs) and mucus traps dirt, pollen and other material you don’t want in your lungs.
Nasal Cavity
Thousands of smaller tubes that branch off of bronchi that carry air even further into the lungs.
Bronchioles
Clusters of tiny air sacs at the end of the smallest bronchioles. Surrounded by capillaries where oxygen and carbon dioxide diffuse from blood cells.
Alveoli
Muscle below the lungs that contracts and relaxes in order to increase or decrease lung capacity (allowing you to breathe).
Diaphragm
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