Respiratory System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Breathing | what your body does when it takes in fresh air, containing oxygen, and lets out the used air.
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| Respiratory System | the body parts that work together to bring air into and push it out of your body.
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| Nose and Mouth | take in and let out air
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| Windpipe/Trachea | the air passage connecting the throat to the lungs
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| Lungs | two spongy bags that expand when they fill with air
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| Diaphragm | a dome-shaped muscle that separates the chest from the stomach area. When you inhale, the diaphragm tightens & moves down, further increasing the space inside the chest. When you exhale, the diaphragm relaxes & moves up, making less space inside the chest
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| Cartilage | tough but bendable material. cartilage makes your windpipe stiff, so your windpipe doesn't collapse when you breathe in
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| Inhale | when you breathe in and your lungs fill with air
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| Exhale | when you breathe out and air is forced out of your lungs
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| Breathing Rate | the number of times you inhale in one minute
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| Larynx | also known as the voice box, it is at the top of the windpipe, all the air you breathe passes through it
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| Vocal Cords | two elastic bands inside the larynx. To make high-pitched sounds, you tighten your vocal cords. Then they vibrate faster as air goes past. To make low-pitched sounds you relax your vocal cords.
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| Bronchial Tubes | when you inhale, air moves from the windpipe into the two bronchial tubes, one going to each lung.
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