a. What factors determine lung compliance? b. Describe the role of pulmonary surfactants in stabilizing the alveoli...

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Medical Sciences

a. What factors determine lung compliance?

b. Describe the role of pulmonary surfactants in stabilizing thealveoli to ensure that smaller ones do not collapse into largerones.

c. At the end of normal respiration, a person has a lung volumeof 3 L, alveolar pressure of 0 mmHg and trans-chest-wall pressureof -2 mmHg. At the end of inspiration, this person has inhaled 500mL of fresh air into the alveoli, and the alveolar pressure is 0mmHg while the trans-chest-wall pressure changes to - 4 mmHg.Calculate the lung compliance of this person, assuming ananatomical dead space of 150 mL (show the math)

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3.7 Ratings (610 Votes)
A Factors determining lung compliancei Distensibility and elastic recoilMore distensibility and elasticity accounts for morecomplianceA stiff lung has less complianceii Lung volumeCompliance is not equal at all lungvolumesCompliance is high at low lung volumes and is low athigh lung volumesiii Lung    See Answer
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