Respiratory System

1. air passages in the lungs. They branch off from the Bronchi.
8. process where organisms combine oxygen with molecules and divert chemical energy in those substances to life-sustaining activities and discarding, as waste products, carbon dioxide and water.
10. this pushes air from the lungs and pulls down on the rib cage. the muscles that push air out the mouth and nose.
12. the process where gases lower pressure by moving from a high-pressure area.
13. carries air, food and fluid from the nose and mouth.
15. the two small muscles inside the larynx. they open to let air flow to your lungs.
16. protein that transports oxygen from the lungs to tissue and carbon dioxide from tissues to the lung.

2. breathing in.
3. when you breathe out.
4. the trachea is made up of rings of this.
5. the hollow tube that allows air to pass from your pharynx and trachea to your lungs.
6. the large tubes that connect to the trachea and direct air to your lungs.
7. the small lid above the larynx. It prevents food and drink from going into the windpipe.
9. connects the larynx to the lungs. Is long and U shaped.
11. located in the chest- an organ responsible for adding oxygen to the blood and removing carbon dioxide from the blood.
14. tiny air sacs where the lungs and blood exchange oxygen and carbon dioxide.