A man connected to a body plethysmograph for estimation of FRC inspires against a closed glottis. Which of the following statements is true
Correct Answer: The pressure in the lungs decreases, but that in the box increases
Description: 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
Category:
Physiology
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