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I've always wondered but I have to propose a new medical device (you have to at the end of this class I'm taking, where you pitch it to BMEngineers. I doubt they're really expecting anything actually worthwhile from undergrads but I thought why not take it seriously and see what comes of it.)
Specifically what I am asking is there a physical partition between the heart and the lungs, and I don't mean the pericardium. If so is the cavity airtight (between the heart and lungs,) is it strong? My anatomy textbook and essential anatomy app don't show anything there, and a thoracotomy video I saw once seemed like the thorax was just one big cavity - but for some reason I feel like I recall an old EMS instructor referring to it as its own separate cavity.
Thanks
Specifically what I am asking is there a physical partition between the heart and the lungs, and I don't mean the pericardium. If so is the cavity airtight (between the heart and lungs,) is it strong? My anatomy textbook and essential anatomy app don't show anything there, and a thoracotomy video I saw once seemed like the thorax was just one big cavity - but for some reason I feel like I recall an old EMS instructor referring to it as its own separate cavity.
Thanks