In case anyone is like me and only knows this from years ago, the creator filmcow is still around and has been making tons of great content all these years (check out vulo lives). I think he's even crowdfunding a new ending to the llamas with hats series at the moment which I'm pretty psyched for.
Interesting, but this isn't an entire heart, is it? Only half? Or isn't a human heart? Human hearts have separate left and right pairs of chambers which pump oxygenated and de-oxygenated blood separately. Or am I mistaken?
I just assumed that they dissected through the heart to unfold it. In humans the heart is ‘compact’ and there’s no real way to unfold it without cutting through cardiac muscle but, the heart embryologically develops from a tube that folds over itself so you can theoretically ‘unfold’ it.
Not that I want to unroll it, but why did it "roll" up in the first place? It seems so tightly wound compared to, like, the intestines or something. Just curious.
And maybe to share muscle power between different phases of the stroke. Two muscles that evolved to pump different chambers could both work on the same chamber when they’re folded over one another. Allow them to transfer force between the layers.