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APHY 102 Exam 3 Chapter (19-21) Questions and Answers 2024

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APHY 102 Exam 3 Chapter (19-21) Questions and Answers 2024 The events of respiration are ventilation, external and internal Breathing functions to deliver oxygen to cells, where it takes part in the reactions of cellular respiration that liberate energy from nutrient molecules and get rid o...

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  • April 26, 2024
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  • 2023/2024
  • Exam (elaborations)
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APHY 102 Exam 3 Chapter (19-21) Questions
and Answers 2024
The events of respiration are
ventilation, external and internal


Breathing functions to
deliver oxygen to cells, where it takes part in the reactions of cellular respiration that liberate energy
from nutrient molecules and get rid of carbon dioxide, which maintains the pH of the internal
environment.


The mucous membrane lining the nasal cavity
warms incoming air.
moistens incoming air.
entraps dust.
correct all of the above.


The pharynx functions as a ______, whereas the larynx functions as a ______.
common passageway for air and food; passageway for air only


The right lung has ______ lobes; the left lung has ______ lobes.
superior, middle, and inferior; superior and inferior


The force that moves air into the lungs during inspiration comes from the
atmospheric pressure.


Of the respiratory air volumes listed, which one has the largest volume?
Vital capacity


The first event in expiration is
the diaphragm and external intercostal respiratory muscles relax.


The respiratory control areas are in the
pons and medulla oblongata.


Which of the following factors does not directly affect breathing rate?
pH


Which of the following is important in maintaining the pH of blood?
Carbon dioxide


Hyperventilation is usually accompanied by a(n)
decrease in blood CO2 concentration and a rise in pH.


The walls of the alveoli are composed of

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