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12 Cards in this Set
- Front
- Back
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Trachea |
another name for the windpipe |
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Bronchi |
two tubes that lead from the trachea to the two lungs |
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ribs |
protect the lungs |
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rings of cartilage |
keep the trachea open at all times |
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bronchioles |
branch off from the bronchi |
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alveoli |
where gas exchange takes place in the lungs |
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oxygen |
moves from the alveoli to the blood |
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carbon dioxide |
move from the blood to the alveoli |
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3 reasons why the alveoli are good at gas exchange |
large surface area, good blood supply, thin cell walls |
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intercostal muscles and diaphragm |
muscles that control breathing |
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cilia |
tiny hairs that waft mucus and bacteria away from the lungs |
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mucus |
sticky substance inside the airways that help to trap bacteria |
