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Lung Compliance Definition Quiz

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Questions and Answers

What is the formula for Lung Compliance (C)?

C = 0.13 L/cm H₂O

C = 220 ml/cm H₂O

C = ∆V/∆P (correct)

C = ∆P/∆V

What does lung compliance measure?

The ease with which lungs can be expanded (correct)

The lung volume at rest

The ability of lungs to resist stretch

The ability of lungs to contract

What is the specific lung compliance?

0.5 L/cm H₂O

220 ml/cm H₂O

0.13 L/cm H₂O

0.22 L/cm H₂O (correct)

Which factor affects lung and chest wall compliance by decreasing surface tension?

Lung Surfactant Signup and view all the answers

Why is the combined lung-thorax system compliance about one half that of the lungs?

Because of elastic elements in muscles, ligaments, joints Signup and view all the answers

In what way does lung compliance differ in children compared to adults?

Children have 2-3 times smaller compliance than adults Signup and view all the answers

What is the relationship between compliance and elasticity in the lungs?

Compliance and elasticity are inversely correlated. Signup and view all the answers

How does lung compliance change in emphysema?

Increased compliance Signup and view all the answers

What effect does having only one lung have on compliance compared to having two lungs?

Decreased compliance with one lung Signup and view all the answers

How does the concentration of surfactant affect lung compliance during deflation?

Less concentrated surfactant increases lung compliance. Signup and view all the answers

What effect do deformities of the thorax have on chest wall compliance?

Decrease chest wall compliance Signup and view all the answers

What is the relationship between ossification of costal cartilage and chest wall compliance?

Ossification decreases chest wall compliance. Signup and view all the answers