Respiratory System

2. An important organ, or. body part, for breathing and smelling.
9. A leaf-shaped flap in the throat that prevents food and water from entering the trachea and the lungs.
11. The process of taking air into the lungs.
12. The primary organs for gas exchange, where oxygen is taken in and carbon dioxide is released.
13. The process of exhaling or breathing out of the lungs.
14. The mixture of gases we breathe.
16. The tubes that carry air in and out of the lungs
19. The opening through which food enters the body.

1. An organ in vertebrates through which food passes
3. System This system, including the lungs and airways, facilitates gas exchange (oxygen and carbon dioxide) between the body and the environment.
4. The main tube that carries air to the lungs.
5. The opening between the vocal folds.
6. The gas we need from the air to survive.
7. The act or process of breathing.
8. The area of the throat containing the vocal cords and used for breathing, swallowing, and talking.
10. Passageway connecting the nose and mouth to the windpipe.
15. A muscle that helps with breathing by contracting and relaxing to move air in and out.
16. A tiny branch of air tubes in the lungs.
17. dioxide: The waste gas that is exhaled.
18. The process of taking in and expelling air during breathing.