Talk:Heart development

External links modified
Hello fellow Wikipedians,

I have just modified one external link on Heart development. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20060630015812/http://www.obgyn.net/us/us.asp?page=%2Fus%2Fcotm%2F0001%2Fehr2000 to http://www.obgyn.net/us/us.asp?page=%2Fus%2Fcotm%2F0001%2Fehr2000

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

Cheers.— InternetArchiveBot  (Report bug) 23:25, 31 October 2017 (UTC)

Align intro text w/ research/cited source
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]

Spaaaaaace (talk) 19:51, 6 September 2021 (UTC)