File talk:Stage13 bf11.jpg
From Embryology
About Image
Embryo @ 3 to 4 weeks
A 6mm embryo is identified which shows a possible heart bulge on the anterior surface. No limb bud is seen.
These photos were taken on February 8, 2011 using a Nikon D700.
Gestational sac intact. http://www.flickr.com/photos/lunarcaustic/5429354528/in/set-72157617368698808
Original image scaled to 1200px.
Embryo-@-3-to-4-weeks-sac-intact-1200px.jpg
