“With the heart and the lungs, it's just a little mini…” — Stuff You Should Know at 11:26
“With the heart and the lungs, it's just a little mini recycling center in your body. Yeah. Another thing to remember is the atria is incoming. The ventricles is outgoing. That's it. That's right. And these chambers work by way of one-way valves at the exits. And that's to keep blood from going back the other way. So…”
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