Across
- 3. A tube that connects your throat to your lungs. (windpipe)
- 4. A tube that carries air from your mouth and nose to the trachea (throat).
- 6. Bones that surround and protect your lungs (and heart).
- 8. A hollow organ that allows you to talk and make sounds when air moves in and out.
- 9. Tubes at the bottom of your trachea that connect to your lungs.
- 11. Two organs that remove oxygen from the air and give it to your blood.
- 12. A muscle that helps your lungs pull in air and push it out.
Down
- 1. Blood vessels in the lungs that move oxygen and carbon dioxide.
- 2. A piece of tissue at the entrance of the trachea that closes when you swallow to keep food out of your airway.
- 5. Opening on your face that breathes air in from outside your body.
- 7. Small branches of the bronchial tubes that lead to the alveoli.
- 10. Tiny air sacs in the lungs where oxygen is exchanged with carbon dioxide.