respiratory

4. Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged with the blood.
6. A muscle beneath the lungs that helps with breathing by contracting and relaxing.
7. The part of the throat that connects the nose and mouth to the trachea.
9. The part of your face where air enters and is filtered before reaching the lungs.
10. Tiny branches inside the lungs that carry air to the alveoli.

1. Also called the voice box, it helps produce sound.
2. The process of breathing in oxygen and exhaling carbon dioxide.
3. An alternate entry point for air when breathing, especially during exercise.
5. The two main tubes that branch from the trachea and lead to each lung.
8. Also known as the windpipe, it carries air from the throat to the lungs.
11. The pair of spongy organs responsible for breathing in oxygen and exhaling carbon dioxide.