Talk:Heart development
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Align intro text w/ research/cited source
[edit]All,
I could find no mention in the cited article that a human embryo heart may start "beating" by week 5 (or any mention at all of "beating"). The source primarily covers mouse embryos and attempts to draw parallels to human embryos. I recommend removal of the intro line: The heart is the first functional organ in vertebrate embryos, and in the human, beats spontaneously around week 5 of development.[3]
Chicken heart outside embryo
[edit]I've read elsewhere that the heart of a chicken embryo is located outside of the main body cavity and can be observed beating there and only later pulls back into the chest cavity. Does this happen in humans? If not, why not? And in that case, is this peculiar to birds, or is it peculiar to us that it remains inside? Is there a connection to the congenital condition ectopia cordis? ~2026-91736-7 (talk) 17:08, 9 April 2026 (UTC)