12 Questions
What is the formula for Lung Compliance (C)?
C = ∆V/∆P
What does lung compliance measure?
The ease with which lungs can be expanded
What is the specific lung compliance?
0.22 L/cm H₂O
Which factor affects lung and chest wall compliance by decreasing surface tension?
Lung Surfactant
Why is the combined lung-thorax system compliance about one half that of the lungs?
Because of elastic elements in muscles, ligaments, joints
In what way does lung compliance differ in children compared to adults?
Children have 2-3 times smaller compliance than adults
What is the relationship between compliance and elasticity in the lungs?
Compliance and elasticity are inversely correlated.
How does lung compliance change in emphysema?
Increased compliance
What effect does having only one lung have on compliance compared to having two lungs?
Decreased compliance with one lung
How does the concentration of surfactant affect lung compliance during deflation?
Less concentrated surfactant increases lung compliance.
What effect do deformities of the thorax have on chest wall compliance?
Decrease chest wall compliance
What is the relationship between ossification of costal cartilage and chest wall compliance?
Ossification decreases chest wall compliance.
Test your knowledge on lung compliance, which is the change in lung volume per unit change in distending trans-pulmonary pressure. Explore the types of lung compliance and understand its importance in measuring distensibility and stretchability of the lungs.
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