| A | B |
|---|
| alveoli | Thin-walled structures in the lung through which oxygen moves into the blood and carbon dioxide moves out of the body. |
| breathing rate | the number of times a person inhales each minute |
| bronchi | tubes that carry air from the trachea to the lungs |
| carbon dioxide | the gaseous waste product produced after cells convert food into energy |
| diaphragm | the dome-shaped muscle that separates the chest from the stomach area |
| larynx | the part of the throat that is used for speaking |
| oxygen | the gas needed by the your cells to convert food into energy |
| respiratory system | the system that takes air into the body and pushes it back out |
| trachea | the air tube that joins the pharynx to the lungs |
| vocal cords | bands of tissue in the larynx that produce sounds when vibrated |
| lungs | two spongy organs that expand when filled with air |
