1. Respiratory System Review

2. Identify the structures labeled in the diagram.
A – nasal cavity
B – pharynx
C – larynx
D – trachea
E – bronchi
F – bronchioles
G – lung
H - diaphragm A B C D E F G H

3. Explain the function of the respiratory system.
To carry out gas exchange between the external and internal environment A B C D E F G H

4. Identify the structure described.
1. Contain a ciliated mucus membrane
2. Voice box
3. Aids in breathing
4. Throat
5. Windpipe A B C
Nasal cavity and trachea D
larynx E F G
diaphragm
pharynx
trachea H

5. Which is the correct sequence for the path of oxygen through the respiratory system?
Nasal cavity
Pharynx
Larynx
Trachea
Bronchi
Bronchioles
Alveoli

6. 1. The tubes that branch from the trachea are the
2. The dome shaped muscle below the chest cavity is called the
3. During swallowing, the air passage of the pharynx is covered by the
4. Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called
5. Breathing is controlled by the chemistry of your blood as it interacts with the
bronchi
diaphragm
epiglottis
bronchioles
carbon dioxide 6

7. The diagram shows a rbc in part of a capillary. Area X is:
a nephron in a kidney
an alveolus in a lung
a villus in the small intestine
a cell in the liver

8. Explain what happens to gases during gas exchange in the alveoli.
Oxygen in alveoli diffues into capillaries (blood).
Carbon dioxide in capillaries (blood) diffuses into alveoli.

9. larynx medulla rings of cartilage alveoli
1. Where are the vocal cords located in the body?
2. Breathing is an involuntary process controlled by the which part of the brain?
3.What prevents the trachea from collapsing?
Where does the actual exchange of gases occur?
During gas exchange where does the oxygen and carbon dioxide go?
larynx
medulla
rings of cartilage
alveoli
O2 diffuses into capillaries. CO2 diffuses out of capillaries and into alveoli.

10. The ______ is a long straight tube that carries air from the back of the throat to the lungs.
trachea

11. What structures trap foreign particles and bacteria in the nose and trachea?
pharynx       
epiglottis     
cilia       
trachea

12. The order of air movement with in the lungs is best described as
bronchioles to bronchi to alveoli      
bronchi to bronchioles to alveoli
trachea to bronchi to alveoli       
bronchi to alveoli to bronchioles

13. Where are the vocal cords located in the body?
Larynx

14. During swallowing, the air passage of the pharynx is covered by the
epiglottis

15. The FIRST branches off the trachea are called  
bronchi     

16. What prevents the trachea from collapsing?
     
rings of cartilage   

17. The dome shaped muscle below the chest cavity is called the
diaphragm      

18. Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called
arterioles         
venules       
capillaries          
bronchioles

19. Inside the alveoli, carbon dioxide and oxygen
are transported along microscopic tubules
are exchanged between air and blood  
are produced inside cells       
are exchanged for other gases

20. Humans breathe more rapidly during exercise than before it because during exercise the blood contains
an increased level of oxygen
a decreased number of red blood cells
an increased level of carbon dioxide
a decreased amount of hemoglobin

21. Breathing is an involuntary process controlled by the amount of ____ in your blood.
       
carbon dioxide   

22. A C B Identify structures A, B and C.
Identify the process that occurs in the alveoli.
GAS EXCHANGE
3. What happens to the blood pumped to the lungs?
IT BECOMES OXYGENATED
BRONCHIOLE A
CAPILLARIES C B
ALVEOLI

23. X Y Identify the structure in the diagram.
What process occurs in this structure?
Identify the blood vessel surrounding this structure.
Identify gas X.
5. Identify gas Y.
6. Identify the process that causes the movement of gases.
alveolus
gas exchange X Y
capillary O2
CO2
diffusion