Fetus: Difference between revisions
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}}</ref> Prior to that time, an unborn baby is called an ''embryo''. | }}</ref> Prior to that time, an unborn baby is called an ''embryo''. | ||
The heart starts to beat in the fifth or sixth week of pregnancy, while still in the embryonic stage, and is fully developed by the tenth week of pregnancy.<ref>{{REFweb | |||
|url=https://www.medicalnewstoday.com/articles/when-does-a-fetus-have-a-heartbeat#timeline | |||
|title=When does a fetus have a heartbeat? | |||
|last=Smith | |||
|first=Anna | |||
|init= | |||
|publisher=Medical News Today | |||
|date=2020-06-09 | |||
|accessdate=2022-09-23 | |||
}}</ref> | |||
{{REF}} | {{REF}} | ||
[[Category:Term]] | [[Category:Term]] | ||