Across
- 5. Muscle that helps your lungs pull in air and push it out
- 6. Hollow areas between the bones in your head that help regulate the temperature and humidity of the air you inhale.
- 7. Openings that pull air from outside your body into your respiratory system.
- 8. Tubes at the bottom of your windpipe that connect into each lung.
Down
- 1. Tube that delivers air from your mouth and nose to the trachea (windpipe).
- 2. Two organs that remove oxygen from the air and pass it into your blood.
- 3. Small branches of the bronchial tubes that lead to the alveoli.
- 4. Tiny hairs that move in a wave-like motion to filter dust and other irritants out of your airways.