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Lýsing

Lýsing
English: Human Embryo (7th week of pregnancy, 5th week p.o.)

This photo of an opened oviduct with an ectopic pregnancy features a spectacularly well preserved 10-millimeter embryo. It is uncommon to see any embryo at all in an ectopic, and for one to be this well preserved (and undisturbed by the prosector's knife) is quite unusual.

Even an embryo this tiny shows very distinct anatomic features, including tail, limb buds, heart (which actually protrudes from the chest), eye cups, cornea/lens, brain, and prominent segmentation into somites. The gestational sac is surrounded by myriad chorionic villi resembling elongated party balloons. This embryo is about five weeks old (or seven weeks in the biologically misleading but eminently practical dating system used in obstetrics).

The photo was taken on Kodak Elite 200 slide film, with a Minolta X-370 camera and 100mm f/4 Rokkor bellows lens at near-full extension. The formalin-fixed specimen was immersed in tap-water and pinned to a tray lined with black velvet. The exposure was 1/4 second at f/8.

Dagsetning First published: October 12, 2001
Uppruni (2014). "Tubal pregnancy with embryo". WikiJournal of Medicine 1 (2): 7. DOI:10.15347/wjm/2014.007.
Höfundarréttarhafi Ed Uthman, MD (Flickr, Wikipedia)
Réttindi
(Endurnotkun á þessari skrá)
Public domain This work has been released into the public domain by its author, Euthman at enska Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Euthman grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Wikipedia

Wikipedia
 This is a featured picture on the English language Wikipedia (Featured pictures) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Spanish language Wikipedia (Recursos destacados) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Turkish language Wikipedia (Seçkin resimler) and is considered one of the finest images. See its nomination here.

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A human embryo in the seventh week of pregnancy.

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publication date enska: 23. nóvember 2006

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núverandi27. nóvember 2006 kl. 01:01Smámynd útgáfunnar frá 27. nóvember 2006, kl. 01:011.874 × 2.000 (1,48 MB)DO11.10
4. júní 2006 kl. 22:31Smámynd útgáfunnar frá 4. júní 2006, kl. 22:31660 × 818 (132 KB)Patho{{Information| |Description=This photo of an opened oviduct with an ectopic pregnancy features a spectacularly well preserved 10-millimeter embryo. It is uncommon to see any embryo at all in an ectopic, and for one to be this well preserved (and undisturb

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