Download Respiratory System - WEB Practice

Respiratory System - WEB Practice
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
____
1. Air is forced into the lungs by the contraction of the
a. alveoli.
c. diaphragm.
b. bronchioles.
d. heart.
2. What structure serves as a passageway for both air and food?
a. pharynx
c. larynx
b. trachea
d. bronchus
Completion
Complete each statement.
3. What surrounds each lung?
4. Gas exchange occurs naturally (and without energy) because of a
5. Gas exchange is increased greatly when the tissues involved are
6. Increased carbon dioxide in the blood increases the blood’s
7. Increased carbon dioxide in the blood stream causes a
8. What gas is most closely monitored so that the brain can determine if you need to breathe more?
9. What part of the brain is believed to be responsible for conscious breathing?
10. What 2 parts of the brain unconsciously control breathing?
Short Answer
11. List in order the structures of the respiratory system through which air passes from the outside environment to
the alveoli.
12. In what stage of breathing is the total volume of the chest cavity largest?
13. What is the basic function of the human respiratory system?
14. Desrbie two things in the respiratory system that filter impurities out of the air.
15. What is the purpose of the grape-like arrangement of the alveoli?
16. Desribe the relaxed position of the diaphragm.
Essay
17. Compare the two types of biological respiration.
Other
USING SCIENCE SKILLS
Figure 37–2
18. Interpreting Graphics In Figure 37-2, which labeled structure is the diaphragm?
19. Interpreting Graphics In Figure 37-2, what are two names for the structure labeled E?
20. Interpreting Graphics In Figure 37-2, what is the label and name of the structures in which the exchange of
gases takes place?
21. Interpreting Graphics What is the label and name of the structure in Figure 37-2 that prevents the passage of
food from the pharynx into the lungs?
22. Interpreting Graphics In Figure 37-2, what is the label and name of the structure that carries air from the
trachea to a lung?
Respiratory System - WEB Practice
Answer Section
MULTIPLE CHOICE
1. ANS: C
2. ANS: A
PTS: 1
PTS: 1
REF: p. 959
REF: p. 956
COMPLETION
3. ANS: pleural sac
PTS: 1
4. ANS: concentration gradient.
PTS: 1
5. ANS: moist
PTS: 1
6. ANS: pH
PTS: 1
7. ANS: Bohr shift
PTS: 1
8. ANS: carbon dioxide
PTS: 1
9. ANS: cortex
PTS: 1
10. ANS: pons and medulla
PTS: 1
SHORT ANSWER
11. ANS:
The air passes from the outside into the body through the nose or mouth, passes through the pharynx and the
trachea, and then passes into the bronchi, bronchioles, and alveoli within the lungs.
PTS: 1
REF: p. 957 | p. 958
12. ANS:
The chest cavity is largest at inhalation.
PTS: 1
13. ANS:
REF: p. 959
The human respiratory system brings about the exchange of oxygen and carbon dioxide.
PTS: 1
REF: p. 956
14. ANS:
mucous - nasal secretions that are sticky so that dust, etc. gets stuck there and does not pass into the lungs.
cilia - sweeps the air as it passes - catching the impurities.
PTS: 1
15. ANS:
The arrangement provides surface area for gas exchange.
PTS: 1
16. ANS:
It is arched up into the thoracic cavity making the caivty volume small (when compared to the volume as the
diaphragm flattens out).
PTS: 1
ESSAY
17. ANS:
Cellular respiration is the release of energy from the breakdown of food in the presence of oxygen. The
second type of respiration is the exchange of oxygen and carbon dioxide between the lungs and the
environment.
PTS: 1
REF: p. 956
OTHER
18. ANS:
C
PTS: 1
19. ANS:
trachea, windpipe
REF: p. 957
PTS: 1
20. ANS:
A, alveoli
REF: p. 957
PTS: 1
21. ANS:
F, epiglottis
REF: p. 957
PTS: 1
22. ANS:
D, bronchus
REF: p. 957
PTS: 1
REF: p. 957