File:Monozygotic twin embryos.jpg

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Monozygotic Twin Embryos

This historic image shows monozygotic twins with separate amniotic membranes and developing placentas. This would therefore represent a very early twinning event in week 1 (GA week 3).

Based upon the limb appearance and presence of digital rays in the hindlimbs, these embryos are stage 19 in Week 7 (GA week 9) of embryonic development.

Links: twinning | Carnegie stage 19 | Week 7

Cite this page: Hill, M.A. (2024, May 28) Embryology Monozygotic twin embryos.jpg. Retrieved from

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current07:37, 3 April 2015Thumbnail for version as of 07:37, 3 April 20151,657 × 2,000 (511 KB)Z8600021 (talk | contribs)Category:Human Category:Abnormal DevelopmentCategory:Twinning

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