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Respiratory System
Key Words
| Term | Definition |
|---|---|
| inhale | the intake of air into the body |
| exhale | the expelling of air from the body |
| respiration | the release of energy from food in an organism |
| gas exchange | the absorbtion of oxygen and the excretion of carbon dioxide in the alveoli |
| respiratory system | Respiratory system is a group of organs that work together to carry out gas exchange |
| diffusion | the movement of a substance from an area of high concentration to an area of low concentration |