| A | B |
| Name three things the nose does | cleans the air, warms and moistens it |
| What does the air have to pass through before it gets to the lungs? | the windpipe |
| What is another word for the windpipe? | trachea |
| The windpipe divides into what? | two parts to go into your lungs |
| When talking about size, what could you compare your lungs to? | footballs |
| Describe what you lungs look like inside. | they are hallow |
| What do your lungs do? | takes out the carbon dioxide and gives them oxygen |
| What changes the carbon dioxide for the oxygen in the lungs? | blood |
| What surrounds and protects the lungs? | ribs |
| There are twelve ________ of ribs. | pairs |
| What is the muscle just below your lungs called? | diaphragm |
| What does the diaphragm do? | makes your lungs move |
| When your diaphragm moves down what happens to your lungs? | they fill with air |
| What happens when your diaphragm moves up? | your lungs force air out |
| What controls how fast you breathe? | your brain |
| What will trigger your brain to make you breathe faster? | carbon dioxide |
| You produce more carbon dioxide when you... | exercise |