anatomy

2. The "voice box" that houses the vocal cords.
6. The brain centers that control the pattern of breathing.
7. A substance that reduces surface tension in the alveoli, preventing collapse.
8. Tree The branching system of airways that directs air into the lungs.
12. Tiny air sacs in the lungs where gas exchange occurs.
14. The smallest branches of the bronchial tree, leading to the alveoli.
15. The windpipe that carries air from the throat to the lungs.

1. The two large tubes that branch off from the trachea into the lungs.
3. The throat, connecting the mouth and nasal cavity to the larynx and esophagus.
4. Capacity The maximum amount of air a person can exhale after a deep breath.
5. The group of organs responsible for breathing and gas exchange.
9. The main respiratory organs responsible for oxygen exchange.
10. Pressure The measure of gas concentration in a mixture, important for respiration.
11. The thin barrier in the lungs where oxygen and carbon dioxide are exchanged.
13. Cavity The passage inside the nose that filters, warms, and humidifies air.