Why is the surface area of the alveoli important for respiratory function?

Bronchial Anatomy Quiz

Quiz
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Science
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Professional Development
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Easy
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It increases the efficiency of gas exchange between air and blood.
It helps trap dust and pathogens.
It reduces the amount of air entering the lungs.
It prevents the lungs from collapsing.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which phospholipid is most critical for air space stability in the surfactant layer of the lungs?
Dipalmitoylphosphatidylcholine (DPPC)
Phosphatidylserine
Sphingomyelin
Phosphatidylethanolamine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which surfactant protein is most abundant and is responsible for surfactant homeostasis?
Surfactant protein A (SP-A)
Surfactant protein B (SP-B)
Surfactant protein C (SP-C)
Surfactant protein D (SP-D)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of surfactant protein B (SP-B)?
Transformation of the lamellar body into the thin surface film of surfactant
Regulation of surfactant synthesis
Binding to microorganisms
Aiding in orientation of DPPC
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the thin portion of the air–blood barrier?
To allow most gas exchange to occur
To accumulate tissue fluid
To produce surfactant
To drain lymphatic fluid
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of cell is responsible for producing surfactant in the alveolus?
Type I alveolar cell
Macrophage
Type II alveolar cell
Endothelial cell
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the location of septal macrophages in the lungs?
In the air spaces of the alveoli
In the connective tissue of the interalveolar septa
In the bronchial tree
In the pharynx
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