Birdwatch Note Rating
2023-04-14 14:02:40 UTC - HELPFUL
Rated by Participant: 5CAF36D31B94076E64DFAB983A9BB00F2A7AC49CC3EA325A2E50EAF2947661F7
Participant Details
Original Note:
The embryonic heart begins beating by 22 days post-fertilization & actively pumps blood by the end of gestational week 4. https://www.karger.com/Article/Fulltext/501906 Video of beating heart at 4 weeks 4 days post-fertilization (6 weeks 4 days since last menstrual period). https://www.ehd.org/movies/21/The-Heart-in-Action
All Note Details