Respiratory System

3. Divided down the middle but the nasal septum
6. Air-filled cavities located within the facial bones that act as an echo chamber during sound production and give resonance to a person’s voice
7. works in conjunction with the cardiovascular system
10. Passageway for air that extends from the Larynx down to the main Bronchi
13. cells require a continuous delivery of ____
14. The nasal cavity is lined with hairs called ____
15. where the exchange of O2 and CO2 take place

1. A muscular structure located between the pharynx and the trachea; houses the vocal cords
2. used by the respiratory system and digestive system
4. helps with equalizing air pressure in your ear
5. area posterior to the nose
8. The _________ covers the larynx and trachea during swallowing of food, which pushes the food into the esophagus
9. flow of air into the lungs
11. flow of air out of the lungs
12. respiration is subdivided into 3 parts external, ventilation, and _____