Q2. A person is admitted to the Emergency Room following a traumatic injury where the chest...
Q2. A person is admitted to the Emergency Room following a traumatic injury where the chest wall and parietal pleura has been cut open. The visceral pleura and lung are intact; however, a chest x-ray reveals a collapsed lung. Explain what has likely happened to the patient. [2 pts]
Homework Answers
normally, intrapleural pressure is negative than that of atmospheric pressure. because of this negative pressure between the pleural space, lungs can remain and function normally.
when the chest wall and parietal pleura is cut open, the pressure in between the intrapleural space becomes equal to that of atmospheric pressure. (because it is in direct continuity with the atmosphere.) when this happens lungs can't stay in the normal expanded state. it collapses due to its elastic recoil.
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