| A | B |
|---|
| Respiration | The process by which cells break down simple food molecules to release the energy they contain. |
| Breathing | When you inhale oxygen and exhale carbon dioxide. |
| Pharynx | The throat;part of both the respiratory and digestive system. |
| Larynx | The voice,located in the top part of the trachea,underneath the epiglottis. |
| Trachea | The windpipe;a passage through which air moves in the respiratory system. |
| Bronchi | The passage that branch from the trachea and direct air into the lungs.r |
| Lungs | The main organs of the respiratory system,where gas exchange takes place. |
| Alveoli | Tiny sac of lung tissue specialized for the movement of gasses between the air and the blood. |
| Diaphragm | A large,dome-shaped muscle that plays an important role in breathing. |
| Key Concepts (2) | 1-The RS supplies oxygen and removes carbon dioxide (Breathing) 2-Cells use oxygen to release the energy stored in food (Respiration). |
