
Mechanics of Breathing Quiz
Interactive Video
•
Other
•
9th - 12th Grade
•
Easy
Michael Ochoa
Used 5+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the intrapleural pressure at rest in millimeters of mercury?
-4 mmHg
-6 mmHg
760 mmHg
0 mmHg
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
During inspiration, how does the intrapulmonary pressure change?
Decreases to -1 mmHg
Increases to 760 mmHg
Increases to +1 mmHg
Remains at 0 mmHg
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What happens to intrapulmonary pressure at the peak of inspiration?
It decreases below atmospheric pressure
It remains unchanged
It becomes equal to atmospheric pressure
It increases above atmospheric pressure
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which muscles are primarily involved in quiet inspiration?
Sternocleidomastoid and Scalenes
Internal Intercostals
External Intercostals and Diaphragm
Pectoralis Minor
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the role of the sternocleidomastoid in forced inspiration?
Decreases thoracic cavity volume
Increases intra-abdominal pressure
Helps pull the sternum outwards
Contracts to relax the diaphragm
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How does forced inspiration affect thoracic cavity volume compared to quiet inspiration?
Increases it more significantly
Decreases it slightly
Has no effect on it
Decreases it significantly
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
During quiet expiration, what primarily drives the air out of the lungs?
Contraction of abdominal muscles
Elastic recoil of the lungs
Active use of the diaphragm
Increase in intrapleural pressure
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