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Chest Wall Compliance 200 — FRCA Primary MCQ

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ModeratePhysiology - RespiratoryChest Wall Compliance 200FRCA Primary

The compliance of the chest wall alone is approximately:

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Correct answer: C — 200 mL/cmH2O

Chest wall compliance alone is approximately 200 mL/cmH2O. Lung compliance alone is also approximately 200 mL/cmH2O. Total system compliance (in series) = 100 mL/cmH2O. The chest wall has a natural tendency to spring outward while the lung tends to collapse inward. FRC is the equilibrium volume where these opposing forces balance.

Reference: Power Kam 2018 Principles of Physiology for the Anaesthetist