BIOM 525 Quiz 4 Questions and Answers- Liberty University
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Course
BIOM 525
Institution
BIOM 525
BIOM 525 Quiz 4 Questions and Answers- Liberty University/BIOM 525 Quiz 4 Questions and Answers- Liberty University/BIOM 525 Quiz 4 Questions and Answers- Liberty University/BIOM 525 Quiz 4 Questions and Answers- Liberty University
biom 525 quiz 4 questions and answers liberty universitybiom 525 quiz 4 questions and answers liberty universitybiom 525 quiz 4 questions and answers liberty universitybiom 525 quiz 4 questions
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BIOM 525
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Question 1
1 out of 1 points
The epithelium of which part of the respiratory tree is not ciliated?
Selected Answer:
Alveolar sacs
Correct Answer:
Alveolar sacs
Question 2
0 out of 1 points
A 42-year-old woman with severe pulmonary fibrosis is evaluated by her physician
and has the following arterial blood gases: pH = 7.48, PaO2 = 55 mm Hg, and
PaCO2 = 32 mm Hg. Which statement best explains the observed value of PaCO2?
Selected
Answer:
The decreased PaO2 inhibits breathing via peripheral
chemoreceptors
Correct Answer:
The decreased PaO2 stimulates breathing via peripheral
chemoreceptors
Question 3
0 out of 1 points
The pH of venous blood is only slightly more acidic than the pH of arterial blood
because
Selected
Answer:
there is no carbonic anhydrase in venous blood
Correct
Answer:
the H+ generated from CO2 and H2O is buffered by
deoxyhemoglobin in venous blood
Question 4
1 out of 1 points
Hypoxemia produces hyperventilation by a direct effect on the;
Selected Answer:
carotid and aortic body chemoreceptors
Correct Answer:
carotid and aortic body chemoreceptors
Question 5
0 out of 1 points
According to Boyle's law of gases, the pressure of a gas at constant temperature is
directly proportional to the volume of the gas in a chamber.
Selected Answer:
True
, Correct Answer:
False
Question 6
1 out of 1 points
In which of these conditions is there a limited benefit derived from oxygen
supplementation?
Selected Answer:
A large right to left shunting of blood in the heart
Correct Answer:
A large right to left shunting of blood in the heart
Question 7
0 out of 1 points
Asthma is characterized by hypersensitive airways, edema of the bronchial walls and increased
mucus plug formation in the airways.
Selected Answer: False
Correct Answer: True
Question 8
0 out of 1 points
In a patient with pneumonia and hypoxia, hypercapnia is always present due to a
high solubility on CO2 in plasma.
Selected Answer:
True
Correct Answer:
False
Question 9
0 out of 1 points
If an area of the lung is not ventilated because of bronchial obstruction, the
pulmonary capillary blood serving that area will have a Po2 that is;
Selected Answer:
higher than inspired Po2
Correct Answer:
equal to mixed venous Po2
Question 10
1 out of 1 points
Which of these directly stimulates the central chemoreceptors?
Selected Answer:
CSF pH
Correct Answer:
CSF pH
Question 11
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