Across
- 3. This gas is expelled by the body.
- 6. ______ routes the air to the windpipe.
- 7. Soft spongy organs located in the chest.
- 8. breathing in the air containing oxygen.
Down
- 1. It transports the air to the lungs.
- 2. They are the openings of the nose.
- 4. Flap like structure that controls the movement of food and air.
- 5. This gas is taken up by the body.