Respiratory System

1. slimy secretion that warms, moistens, and filters air
4. release of a breath
8. drawing in of a breath
9. smallest branches of the bronchial tree
10. muscle located below the lungs; contraction causes the lungs to draw in a breath
12. term that describes how bronchi get continually smaller, like a tree branch
13. common passageway for both the respiratory and digestive system
15. not breathing
16. windpipe; has distinct rings of cartilage
17. 'voice box' that contains vocal cords
19. grape-like clusters at ends of bronchioles; where exchange of oxygen and carbon dioxide gasses occur
20. suffocation; blockage of airflow that results in a lack of oxygen

1. lining of respiratory tract that secretes mucus
2. flap that covers the larynx during swallowing
3. paired terminal branches of the trachea contained within the lungs; singular: bronchus
5. paired major organs of respiration that contain bronchi and are divided into clearly defined lobes
6. abnormally slow respiratory rate
7. tiny hairs inside nostrils that help to filter air
11. abnormally fast respiration rate
14. exchange of oxygen and carbon dioxide gasses with cells
18. difficult breathing