“And then you're like, well, what the heck do the…” — Stuff You Should Know at 18:40
“And then you're like, well, what the heck do the capillaries do? They carry blood between the veins and the arteries. And I guess at some point some of the veins are like, hey, I need some more nutrients. Give it to me from the arteries or something like that. I guess it's just for homeostasis purposes. That's the…”
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