Respiratory System

3. The two branches that the trachea divides into are called _______
5. The voice box located in the throat is known as the _______
6. The small air sacs in the lungs where gas exchange occurs are known as _______
8. The gas that humans exhale as a waste product of respiration is _______
10. The tube that connects the throat to the lungs is the _______
11. The condition where airways become inflamed and narrowed is called _______
14. The part of the brain that controls the rate of breathing is the _______
15. The movement of air into and out of the lungs is referred to as _______

1. The flap of tissue that prevents food from entering the windpipe is the _______
2. The dome-shaped muscle that helps with respiration is called the ______
4. The small tubes branching off from the bronchi are called _______
7. The disease caused by long-term exposure to harmful substances, leading to alveoli damage, is _______
9. The process of taking in oxygen and releasing carbon dioxide is called _______
12. The primary organ responsible for breathing is____
13. The thin membrane surrounding the lungs is the _______