MSCI 520 Quiz - Respiratory Physiology (Score for this quiz: 50 out of 50) Liberty University

MSCI 520 Quiz - Respiratory Physiology (Score for this quiz:
50 out of 50) 2025-2026 Liberty University

Score for this quiz: 50 out of 50
Submitted Nov 23 at 10:27pm
This attempt took 96 minutes.

Question 1
pts
Which of these structures of the respiratory system is not involved in
gaseous exchange?

Segmental Bronchi


Question 2
pts
Chronic obstructive sleep apnea is commonly complicated by pulmonary
hypertension and cor pulmonale.

True


Question 3
pts
Which of the following changes occurs during strenuous exercise?

Ventilation rate and O2 consumption increase to the same extent


Question 4
pts
Which volume remains in the lungs after a tidal volume (Vt) is expired?

Functional residual capacity (FRC)




Question 5
pts
Only free dissolved gases produce a partial pressure in plasma.

True

, Question 6
pts
In a maximal expiration, the total volume expired is;

vital capacity (VC)


Question 7
pts
In the hemoglobin–O2 dissociation curves, a rightward shift could be caused
by;


strenuous exercise


Question 8
pts
In a patient that climbed to the top of mount Everest, which is the correct
sequence of respiratory events;

Decreased alveolar PO2 – Decreased Plasma PO2 – Increased plasma PCO2 –
Hyperventilation


Question 9
pts
The effect of increased PCO2 and decreased pH on reducing the affinity of
hemoglobin for oxygen is described as the;

Bohr effect


Question 10
pts
In a baby who was born at 30 weeks of gestation, there is a low lecithin to
sphingomyelin ratio due to a reactive proliferation of the type I alveolar
pneumocytes.

False