1. Respiratory System Review

2. What is the main passageway into and out of the respiratory system?
The nose

3. Breathing is done by a muscle called what?
The diaphragm

4. Why do people with emphysema have trouble breathing?
The alveoli have been destroyed

5. What is asthma caused by?
Usually due to an allergy or a hypersensitivity to something in the environment

6. What is a common cause of lung cancer?
Smoking

7. Are breathing and respiration the same thing?No

8. What are the 2 parts to respiration?
Cellular respiration
Breathing

9. What are the functions of the respiratory system?
Supply oxygen to the blood
Remove carbon dioxide from the blood

10. The pharynx branches into what?
The esophagus
The larynx

11. The traches branches into 2 tubes called what?
Bronchi

12. Alveoli exchange what 2 gases?
Oxygen
Carbon dioxide

13. In the cells, oxygen combines with what to provide energy?
Nutrients

14. Describe the pleura?
Protects and cushions the lungs
Has 2 layers
The layers are separated by a space (pleural cavity)

15. What does pleural fluid do?
Lubricates the pleural cavity
Allows the layers to slide against each other

16. What happens in cellular respiration?
Oxygen combines with glucose to produce
Energy
Water (waste product)
Carbon dioxide (waste product)

17. Describe the vocal cords?
A pair of elastic bands that stretch across the larynx.
They vibrate when air flows over them, making sound.