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.
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.