The respiratory system vocabulary
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| Trachea | windpipe. Made of rings of cartilage.
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| Larynx | Upper portion of the Trachea contains the vocal cords
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| diaphram | strong muscle located beneath the lungs that helps us to inhale and exhale
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| epiglottis | flap that covers the trachea and does not let food or liquid to enter when swallowing
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| alveoli | air sac where oxygen and carbon-dioxide are exchanged in the lungs.
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| cilia | hair-like structures that move dust and other particles out of the lungs and trachea
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| vocal cords | elastic bands found in the larynx that vibrate and make sound.
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| inhale | when air enters the lungs due to the ribs expanding and the diaphram drawing down.
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| exhale | when air exits the lungs due to the ribs relaxing and the diaphram pushing up
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| carbon dioxide | waste gas from the cells that exits the lungs
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| oxygen | an essential gas
that the cells need in order to make energy.
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| cartilage | the flexible bone-like material that is found in the trachea and which keeps the airway open
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| bronchus | A major branch of the trachea as it splits in two lungs (made of cartilage)
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| bronchioles | branches of the bronchus (without cartilage)
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| Pharynx | The Secret Password
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