"Human Development" Flickr set, © All Rights Reserved (lunar caustic) →
Gestational sac intact^.
A 6mm embryo is identified which shows a possible heart bulge on the anterior
surface. No limb bud is seen^.An embryo from an ectopic pregnancy which is approximately 3 to 4 weeks
estimated gestational age from conception. It was 0.5 cm long. See larger view for detail^.Approximately 6 weeks estimated gestational age from conception, 8 weeks from LMP. Shot with 105 mm Micro-NIKKOR lens with 2 off camera SB-800’s. Specimen is submerged in alcohol^.
For another amazing image of a 6 - 7 week embryo: farm4.static.flickr.com/3396/4618437757_33c40f4875_b.jpg (also seen below)
This is an approximately 6-7 week estimated gestational age 19mm embryo from conception, 8-9 weeks from LMP. Features include finger rays and cerebral hemispheres. Shot with NIkon D700 with 105 mm Micro-NIKKOR lens with 2 off camera SB-800’s. Specimen is submerged in alcohol. View in large to see the detail^.
Embryo received with membranes intact. 1.6cm. EGA approximately 6-7 weeks from conception^.
Embryo received with membranes intact. 1.6cm. EGA approximately 6-7 weeks from conception^.
This is an approximately 6-7 week estimated gestational age 19mm embryo from conception, 8-9 weeks from LMP. Features include finger rays and cerebral hemispheres. Shot with NIkon D700 with 105 mm Micro-NIKKOR lens with 2 off camera SB-800’s. Specimen is submerged in alcohol. View in large to see the detail^.
This is an approximately 6-7 week estimated gestational age 19mm embryo from conception, 8-9 weeks from LMP. Features include finger rays and cerebral hemispheres. Shot with NIkon D700 with 105 mm Micro-NIKKOR lens with 2 off camera SB-800’s. Specimen is submerged in alcohol. View in large to see the detail^.
This was taken with a Nikon D200 and a 105 mm micro Nikkor with 3 SB-800’s off camera, fired with an SB-900 on camera, commander mode, TTL. Uncropped version^.
Notable in the this fetus is an extraembryonic coelom in the umbilical cord. Loops of intestine are seen as a bulge of orange material in the cord near it’s attachment to the abdominal wall. These loops will withdraw at arould week 11. If these do not return, the condition is called an omphalocele^.
CR 3.6cm. For perspective the foot length is 0.6 cm which is about the same length of the embryo in the following picture on the photostream at 3 - 4 weeks developement. You will need to view on black to get a feeling for the detail. Use the magnifying glass button above the photo^.
Fallopian tube with extruded placenta and embryo still within amniotic sac. The embryo is approximately 6-7 weeks EGA from conception. Image taken after submerging in 95% alcohol with a Nikon D3s and 105mm micro Nikkor lens and 3 off camera SB800’s fired with an on camera SB900… TTL in manual mode 1/250, f51^.
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Roll-over images for information on age and click through to flickr set to see larger sizes with more detail. Keep in mind that this is MACRO photography and these specimens are measured mostly in millimeters or sometimes centimeters; they’re incredibly small and NOT to scale whatsoever.














