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7A REVIEWRespiratory & Excretory
Systems
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1. Which is the correct sequence for the path of oxygen through the respiratory system?
Nasal cavityPharynxLarynxTracheaBronchiBronchiolesAlveoli
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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
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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.
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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.
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11. The ______ is a long straight tube that carries air from the back of the throat to the lungs.
trachea
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12. What structures trap foreign particles and bacteria in the nose and trachea?
a)pharynx b)epiglottis c)cilia d)trachea
c
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13. The order of air movement with in the lungs is best described as
a) bronchioles to bronchi to alveoli
b) bronchi to bronchioles to alveoli c) trachea to bronchi to alveoli d) bronchi to alveoli to bronchioles c
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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
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16. The FIRST branches off the trachea are called
bronchi
17. What prevents the trachea from collapsing?
rings of cartilage
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18. Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called
a) arterioles b) venules c) capillaries d) bronchioles
d
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19. Inside the alveoli, carbon dioxide and oxygen
a) are transported along microscopic tubules
b) are exchanged between air and blood
c) are produced inside cells d) are exchanged for other gases b
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20. Humans breathe more rapidly during exercise than before it because during exercise the blood contains
1.an increased level of oxygen2.a decreased number of red blood
cells3.an increased level of carbon
dioxide4.a decreased amount of
hemoglobin
3
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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
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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
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23. Identify the structures labeled in the diagram.
A – nasal cavityB – pharynxC – larynxD – tracheaE – bronchiF – bronchiolesG – lungH - diaphragm
A
BC
D
EF
G
H
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24. Explain the function of the respiratory system.
To carry out gas exchange between the external and internal environment
A
BC
D
EF
G
H
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25. Identify the structure described.
a. Contain a ciliated mucus membrane
b. Voice box
c. Aids in breathing
d. Throat
e. Windpipe
A
BC
D
EF
G
H
Nasal cavity and trachea
larynx
diaphragm
pharynx
trachea
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26.
4
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27.
4
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28.
4
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29.
30.
1
3
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circulatory
It came from the lungs.
31.
32.
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Oxygen moves from the alveoli (respiratory system) into the capillaries (circulatory) while carbon dioxide moves from the capillaries into the alveoli.
33.
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34.Identify A, B, and D.
lung
liver
kidney
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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
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37. What does organ A excrete?
38. Which organ detoxifies the blood?
•CO2 and H2O vapor
•B - Liver
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39. What are metabolic wastes? Examples?
•Wastes from your cells.
•CO2, H2O, salts, urea
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40. Identify structures A, B, C, and D.
Kidney
Ureter
Urinary bladderUrethra
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41. Which structure produces urine?
42. What is the path of urine?
A - Kidneys
Kidneys ureters urinary bladder urethra
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43. What stores urine?
44. What is the function of D?
C - Urinary bladder
Releases urine from the body.
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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.