PCOL 838: EXAM 2 STUDY GUIDE 2025
QUESTIONS AND ANSWERS
The respiratory system is comprised of which of the following zones? Select all that apply.
a.) Conducting zone
b.) Blood zone
c.) Apparatus zone
d.) Respiratory zone - ANS A and D
Conducting zone and Respiratory zone
What is the conducting zone?
a.) It forms a continuous passageway for air to move in and out of the lungs.
b.) It is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar
ducts, and alveoli. - ANS a.) It forms a continuous passageway for air to move in and out of
the lungs
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,Which of the following are considered to be part of the conducting zone? Select all that apply
a.) Nose
b.) Pharynx
c.) Respiratory bronchiole
d.) Alveolar duct
e.) Larynx
f.) Trachea
g.) Alveoli
h.) Bronchi
i.) Bronchioles - ANS A, B, E, F, H, and I
Nose, Pharynx, Larynx, Trachea, Bronchi, and Bronchioles
What is the respiratory zone?
a.) It forms a continuous passageway for air to move in and out of the lungs.
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,b.) It is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar
ducts, and alveoli. - ANS b.) It is found deep inside the lungs and is made up of the
respiratory bronchioles, alveolar ducts, and alveoli.
Which of the following are considered to be part of the respiratory zone? Select all that apply
a.) Nose
b.) Pharynx
c.) Respiratory bronchiole
d.) Alveolar duct
e.) Larynx
f.) Trachea
g.) Alveoli
h.) Bronchi
i.) Bronchioles - ANS C, D, and G
Respiratory bronchioles, Alveolar ducts, and Alveoli
What part of the lungs is responsible for allowing gas exchange between the lungs and the
blood?
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, a.) Trachea
b.) Pharynx
c.) Bronchi
d.) Alveoli - ANS d.) Alveoli
What are the 2 principle physiologic roles of the lungs?
a.) To make oxygen available to tissues for metabolism
b.) To remove the main byproduct of that metabolism
c.) Fluid homeostasis
d.) Host defense - ANS A and B
To make oxygen available to tissues for metabolism and to remove the main byproduct of that
metabolism.
What mechanism do the pulmonary arteries have for matching alveolar perfusion with
ventilation? - ANS Hypoxic pulmonary vasoconstriction (HPV)
Decreased alveolar PO2 causes __________ of the pulmonary arterioles.
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QUESTIONS AND ANSWERS
The respiratory system is comprised of which of the following zones? Select all that apply.
a.) Conducting zone
b.) Blood zone
c.) Apparatus zone
d.) Respiratory zone - ANS A and D
Conducting zone and Respiratory zone
What is the conducting zone?
a.) It forms a continuous passageway for air to move in and out of the lungs.
b.) It is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar
ducts, and alveoli. - ANS a.) It forms a continuous passageway for air to move in and out of
the lungs
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,Which of the following are considered to be part of the conducting zone? Select all that apply
a.) Nose
b.) Pharynx
c.) Respiratory bronchiole
d.) Alveolar duct
e.) Larynx
f.) Trachea
g.) Alveoli
h.) Bronchi
i.) Bronchioles - ANS A, B, E, F, H, and I
Nose, Pharynx, Larynx, Trachea, Bronchi, and Bronchioles
What is the respiratory zone?
a.) It forms a continuous passageway for air to move in and out of the lungs.
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,b.) It is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar
ducts, and alveoli. - ANS b.) It is found deep inside the lungs and is made up of the
respiratory bronchioles, alveolar ducts, and alveoli.
Which of the following are considered to be part of the respiratory zone? Select all that apply
a.) Nose
b.) Pharynx
c.) Respiratory bronchiole
d.) Alveolar duct
e.) Larynx
f.) Trachea
g.) Alveoli
h.) Bronchi
i.) Bronchioles - ANS C, D, and G
Respiratory bronchioles, Alveolar ducts, and Alveoli
What part of the lungs is responsible for allowing gas exchange between the lungs and the
blood?
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, a.) Trachea
b.) Pharynx
c.) Bronchi
d.) Alveoli - ANS d.) Alveoli
What are the 2 principle physiologic roles of the lungs?
a.) To make oxygen available to tissues for metabolism
b.) To remove the main byproduct of that metabolism
c.) Fluid homeostasis
d.) Host defense - ANS A and B
To make oxygen available to tissues for metabolism and to remove the main byproduct of that
metabolism.
What mechanism do the pulmonary arteries have for matching alveolar perfusion with
ventilation? - ANS Hypoxic pulmonary vasoconstriction (HPV)
Decreased alveolar PO2 causes __________ of the pulmonary arterioles.
4 @COPYRIGHT THESTAR 2025/2026
