1. 7A REVIEW Respiratory & Excretory Systems

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

3. bronchi diaphragm epiglottis bronchioles
2. The tubes that branch from the trachea are the
3. The dome shaped muscle below the chest cavity is called the
4. During swallowing, the air passage of the pharynx is covered by the
5. Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called
bronchi
diaphragm
epiglottis
bronchioles 3

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

5. larynx rings of cartilage alveoli
7. Where are the vocal cords located in the body?
8.What prevents the trachea from collapsing?
9. Where does the actual exchange of gases occur?
10. During gas exchange where does the oxygen and carbon dioxide go?
larynx
rings of cartilage
alveoli
O2 diffuses into capillaries. CO2 diffuses out of capillaries and into alveoli.

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

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

8. c 13. 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 c

9. 14. Where are the vocal cords located in the body? Larynx
15. During swallowing, the air passage of the pharynx is covered by the
epiglottis

10. 16. The FIRST branches off the trachea are called
bronchi     
17. What prevents the trachea from collapsing?
rings of cartilage   

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

12. b 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 b

13. 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 3

14. 21. What happens to each of the following during inhalation?
a. Diaphragm
b. Rib cage
c. Pressure in chest cavity
contracts (pulls down)
expands
decreases

15. 22. What happens to each of the following during exhalation?
a. Diaphragm
b. Rib cage
c. Pressure in chest cavity
relaxes (moves up)
relaxes
increases

16. 23. 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

17. 24. 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

18. 25. Identify the structure described.
a. Contain a ciliated mucus membrane
b. Voice box
c. Aids in breathing
d. Throat
e. Windpipe A B C
Nasal cavity and trachea D
larynx E F G
diaphragm
pharynx
trachea H

19. 26. 4

20. 27. 4

21. 28. 4

22. 29. 1
30. 3

23. 31.
circulatory
32.
It came from the lungs.

24. 33.
Oxygen moves from the alveoli (respiratory system) into the capillaries (circulatory) while carbon dioxide moves from the capillaries into the alveoli.

25. 34.Identify A, B, and D.
lung
liver
kidney

26. B - liver 35. Which organ produces urea?
36. What is the function of D?
B - liver
Filter wastes from blood
Regulate water concentration of blood.
Produce urine

27. 37. What does organ A excrete?
38. Which organ detoxifies the blood?
CO2 and H2O vapor
B - Liver

28. 39. What are metabolic wastes? Examples?
Wastes from your cells.
CO2, H2O, salts, urea

29. Kidney Ureter Urinary bladder Urethra
40. Identify structures A, B, C, and D.
Kidney
Ureter
Urinary bladder
Urethra

30. Kidneys  ureters  urinary bladder  urethra
41. Which structure produces urine?
42. What is the path of urine?
A - Kidneys
Kidneys  ureters  urinary bladder  urethra

31. Releases urine from the body.
43. What stores urine?
44. What is the function of D?
C - Urinary bladder
Releases urine from the body.

32. 46. Why is the skin also an excretory organ?
45. Which human excretory structure aids in the maintenance of normal body temperature?
46. Why is the skin also an excretory organ?
Skin
It excretes water, salts and small amounts of urea in the form of perspiration.