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Respiratory System
| Term | Definition |
|---|---|
| respiratory system | The body parts that work together to bring air into and push it out of your body. |
| breathing | what your body does when it takes in fresh air, containing oxygen, and lets out the used air |
| nose and mouth | take in and let out air |
| windpipe | the air passage connecting the throat to the lungs |
| lungs | two spongy bags that expand when they fill with air |
| diaphragm | a dome-shaped muscle that separates the chest from the stomach area. |
| cartilage | tough but bendable material. Cartilage makes your windpipe stiff, so your windpipe doesn't collapse when you breathe in. |
| inhale | when you breathe in and your lungs fill with air |
| exhale | when you breathe out and air is forced out of the lungs |
| breathing rate | the number of times you inhale in one minute |
| larynx | also known as the voice box, it is at the top of the windpipe, all the air you breathe passes through it |
| vocal cords | two elastic bands inside the larynx. |
| bronchial tubes | when you inhale, air moves from the windpipe into two bronchial tubes, one going to each lung |
| air sacs | chambers that have very thin walls. They are surrounded by tiny thin-walled blood vessels called capillaries. |
| cell | the basic unit that makes up all living things |
| respiration | the process by which cells use oxygen and give off carbon dioxide |
Created by:
tgalloway
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