| A | B |
|---|
| cellular respiration | process that releases energy and produces carbon dioxide and water as waste |
| trachea | windpipe |
| pharynx | the place where your nose and throat come together |
| epiglottis | flap of tissue that swings down over the opening of the trachea when you swallow |
| larynx | voicebox |
| bronchi | smaller tubes beneath the larynx |
| bronchioles | smaller tubes than the bronchi |
| alveoli | group of tiny air sacs at the tubes end |
| diaphragm | a thick sheet of muscle that forms the floor of your chest cavity |
| gas exchange | process of taking in oxygen and giving off carbon dioxide |
