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What is the role of surfactant in the lungs?
What is the role of surfactant in the lungs?
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Practice Questions
1 question
Q1
What is the role of surfactant in the lungs?
To transport oxygen
To prevent alveolar collapse
To filter dust particles
To regulate blood pH
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Surfactant reduces surface tension in the alveoli, preventing their collapse and aiding in gas exchange.
Questions & Step-by-step Solutions
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Q
Q: What is the role of surfactant in the lungs?
Solution:
Surfactant reduces surface tension in the alveoli, preventing their collapse and aiding in gas exchange.
Steps: 6
Show Steps
Step 1: Understand that the lungs have tiny air sacs called alveoli.
Step 2: Know that alveoli need to stay open to help us breathe.
Step 3: Learn that surfactant is a special substance made in the lungs.
Step 4: Realize that surfactant reduces surface tension in the alveoli.
Step 5: Understand that by reducing surface tension, surfactant helps keep the alveoli from collapsing.
Step 6: Know that this helps with gas exchange, allowing oxygen to enter the blood and carbon dioxide to leave.
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