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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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A man connected to a body plethysmograph for estimation of FRC inspires against a closed glottis. Which of the following statements is true -
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The correct answer is  Ans. (c) The pressure in the lung decrease, but that in the box increase(Ref: Ganong, 25th ed/p.630)Body plethysmography is based on the principle of Boyle's Law which states that volume of a gas is inversely proportional to the pressure of that gas at constant temperatureReciprocal changes in Pressure and volume (Boyle's law) during plethysmography During inspirationDuring expirationIn subject's LungVolume increasesPressure decreasesVolume decreasesPressure increasesIn boxVolume decreasesPressure increasesVolume increasesPressure decreases