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Look up embryological development of the heart to see why
That's even better. Two blood vessels that fuse and twist.
Why did they name the left and right atrium backwards? That seems unnecessarily confusing.
It's only backwards because you're looking at it from the outside from the front. When it's in you, the left is on your left.
I just realized I’m stupid, thank you
welcome to the club bro
A true inflection point no doubt
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