The atria and ventricles are actually one long fibrous tissue twisted up in a spiral, so if you cut the center and untangle it, you can make a super long heart.
They say the spiral structure formed because it's efficient, allowing it to pump out way more blood with less muscle power compared to a straight structure.
The Power of the Spiral!!
"Heart trivia quickly devolved into Gurren Lagann quotes and unsettling jokes about how chewy boiled hearts must be."
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