| A | B |
| What are the major organs of the respiratory system? | The Lungs |
| What are the tubes that branch from the trachea? | bronchi |
| Where in the lungs does gas exchange occur? | in the alveoli |
| What do your cells need alot of in order to do daily activities? | Oxygen |
| What filters the air when you inhale | Tiny hairs in your nose |
| What in your nasal passages warm the air? | capillaries |
| What is another name for your windpipe? | Trachea |
| Where does each bronchus lead to? | to a lung |
| The smallest tubes are tiny air sacs. What are the called? | Alveoli |
| How are gases exchanged in the lungs? | between the air in the alveoli and blood in the capillaries. |
| What does your body produce as a waste product of cell function? | Carbon Dioxide |
| How does your body get rid of this waste product? | when you exhale |
| What picks up the oxygen that you inhale? | Red Blood Cells |
| What structures carry oxygen poor blood from the heart to the lungs? | pulmonary arteries |
| What structures carry oxygen-rich blood from the lungs to the heart? | pulmonary veins |
| How does the circulatory system work with the respiratory system to provide each cell with the oxygen it needs? | Oxygen taken in by the lungs is carried by red blood cells to each body cell. |