Chapter 02: Ventilation
1. What instrument is used to measure Patm?
a. dynameter b. altimeter
c. barometer d. hygrometer
ANSWER: c
FEEDBACK: a. A barometer is used to measure barometric (PB) or atmospheric (Patm) pressure.
b. A barometer is used to measure barometric (PB) or atmospheric (Patm) pressure.
c. A barometer is used to measure barometric (PB) or atmospheric (Patm) pressure.
d. A barometer is used to measure barometric (PB) or atmospheric (Patm) pressure.
POINTS: 1
DIFFICULTY: Recall
REFERENCES: The Airways
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/29/2019 9:34 AM
DATE MODIFIED: 1/29/2019 9:37 AM
2. What is the term for the movement of gas from the external environment to the alveoli?
a. external respiration b. ventilation
c. internal respiration d. osmosis
ANSWER: b
FEEDBACK: a. The movement of gas from the external environment to the alveoli is called
ventilation.
b. The movement of gas from the external environment to the alveoli is called
ventilation.
c. The movement of gas from the external environment to the alveoli is called
ventilation.
d. The movement of gas from the external environment to the alveoli is called
ventilation.
POINTS: 1
DIFFICULTY: Recall
REFERENCES: Introduction
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: 1
DATE CREATED: 1/29/2019 9:38 AM
DATE MODIFIED: 1/29/2019 9:39 AM
3. At sea level under standard conditions, what would the PB equal in mm Hg ?
a. 29.9 b. 1034
c. 14.7 d. 760
ANSWER: d
FEEDBACK: a. At sea level under standard conditions, the normal barometric pressure is 760
mm Hg.
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,Name: Class: Date:
Chapter 02: Ventilation
b. At sea level under standard conditions, the normal barometric pressure is 760
mm Hg.
c. At sea level under standard conditions, the normal barometric pressure is 760
mm Hg.
d. sea level under standard conditions, the normal barometric pressure is 760
At
mm Hg.
POINTS: 1
DIFFICULTY: Recall
REFERENCES: Mechanisms of Ventilation
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: 2
DATE CREATED: 1/29/2019 9:40 AM
DATE MODIFIED: 1/30/2019 1:04 AM
4. What is the general term for a pressure difference between two points in a system?
a. diffusion b. osmotic gradient
c. pressure gradient d. system pressure variation
ANSWER: c
FEEDBACK: a. A pressure gradient is defined as the difference in pressures occuring between
two points.
b. A pressure gradient is defined as the difference in pressures occuring between
two points.
c. A pressure gradient is defined as the difference in pressures occuring between
two points.
d. A pressure gradient is defined as the difference in pressures occuring between
two points.
POINTS: 1
DIFFICULTY: Recall
REFERENCES: Pressure Gradients
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: 2
DATE CREATED: 1/29/2019 9:43 AM
DATE MODIFIED: 1/29/2019 9:45 AM
5. At sea level, what would the alveolar pressure at end-expiration equal?
a. 760 mm Hg b. 0 mm Hg
c. 764 mmHg d. 756 mm Hg
ANSWER: a
FEEDBACK: a. Because the alveolar and atmospheric pressure are identical at end-expiration,
no air movement occurs.
b. Because the alveolar and atmospheric pressure are identical at end-expiration,
no air movement occurs.
c. Because the alveolar and atmospheric pressure are identical at end-expiration,
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, Name: Class: Date:
Chapter 02: Ventilation
no air movement occurs.
d. Because the alveolar and atmospheric pressure are identical at end-expiration,
no air movement occurs.
POINTS: 1
DIFFICULTY: Recall
REFERENCES: Pressure Gradients
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: 2
DATE CREATED: 1/29/2019 9:45 AM
DATE MODIFIED: 1/29/2019 9:47 AM
6. At what point in the ventilatory cycle would the intra-alveolar pressure be higher than the atmospheric pressure?
a. pre-inspiration b. inspiration
c. expiration d. end-expiration
ANSWER: c
FEEDBACK: a. For gas to leave the lungs during exhalation, the intra-alveolar pressure must
be higher than the atmospheric pressure.
b. For gas to leave the lungs during exhalation, the intra-alveolar pressure must
be higher than the atmospheric pressure.
c. For gas to leave the lungs during exhalation, the intra-alveolar pressure must
be higher than the atmospheric pressure.
d. For gas to leave the lungs during exhalation, the intra-alveolar pressure must
be higher than the atmospheric pressure.
POINTS: 1
DIFFICULTY: Recall
REFERENCES: Pressure Gradients
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: 2
DATE CREATED: 1/29/2019 9:49 AM
DATE MODIFIED: 1/29/2019 9:51 AM
7. Which gas law states that at constant temperature, a volume of gas varies inversely proportional to its pressure?
a. Henry’s b. Charles
c. Boyle’s d. Gay-Lussac’s
ANSWER: c
FEEDBACK: a. Boyle’s law states that at a constant temperature P1 x V1=P2 x V2 .
b. Boyle’s law states that at a constant temperature P1 x V1=P2 x V2 .
c. Boyle’s law states that at a constant temperature P1 x V1=P2 x V2 .
d. Boyle’s law states that at a constant temperature P1 x V1=P2 x V2 .
POINTS: 1
DIFFICULTY: Recall
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