File talk:Stage19 bf2.jpg
From Embryology
Original Author Legend
- "The size (2cm in length) and anatomic features suggest development equivalent to a nine-week pregnancy (GA 9 weeks or post ovulation 7 weeks). In obstetrics, pregnancy is dated from the first day of the last menstrual period, which is about two weeks prior to the ovulation that resulted in the pregnancy."
Original file name: 548063929_1e98281b51_o.jpg
http://www.flickr.com/photos/euthman/548063929/
Uploaded to Flickr on June 14, 2007 by Ed Uthman Image (pathologist in Houston, Texas)
