Briefly differentiate between atmospheric pressure, intrapulmonary pressure, and intrapleural pressure
Which of these is always negative in a healthy individual during normal breathing? What happens if intrapleural pressure becomes equal to atmospheric pressure?
What will be an ideal response
Atmospheric pressure is the pressure exerted by gases of the atmosphere. Intrapulmonary pressure is the pressure within the alveoli of the lungs. Intrapleural pressure is the pressure within the intrapleural space. Intrapleural pressure is negative relative to the other two during normal inspiration/expiration. Equalization of the intrapleural pressure with atmospheric pressure or intrapulmonary pressure immediately causes lung collapse.
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