system
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.
user
A man connected to a body plethysmograph for estimation of FRC inspires against a closed glottis. Which of the following statements is true
assistant
The correct answer is  During Plethysmography, the following are the changes.
-        Lungs
o   During Expiration- Volume decreases, pressure increases
o   During inspiration- Volume increases, pressure decreases
-        Chamber
o   During expiration- Volume increases, pressure decreases
o   During inspiration- Volume decreases, pressure increases