Carnegie Stage 17 Movie: Difference between revisions
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* '''chorionic sac''' - is left almost completely occupied by the amniotic sac. The chorionic frondosum (upper half) is densely covered in chorionic villi, this is the early embryonic component of the developing placenta. The chorionic lavae (lower half) is smooth and chorionic villi are absent, this faces towards the maternal decidua capsularis. | * '''chorionic sac''' - is left almost completely occupied by the amniotic sac. The chorionic frondosum (upper half) is densely covered in chorionic villi, this is the early embryonic component of the developing placenta. The chorionic lavae (lower half) is smooth and chorionic villi are absent, this faces towards the maternal decidua capsularis. | ||
* '''amniotic sac''' - embryo near fills the amniotic sac. | * '''amniotic sac''' - embryo near fills the amniotic sac. | ||
* '''yolk sac''' - is now much smaller than the embryo and lies on the ventral side by the umbilicus. | * '''yolk sac''' - is now much smaller than the embryo and lies on the ventral side by the umbilicus. Later this will remain as a small remnant structure on the inner wall of the chorionic sac. | ||
===Embryo=== | ===Embryo=== |
Revision as of 06:31, 8 February 2016
Human Embryo Carnegie Stage 17
Embryology - 24 Apr 2024 Expand to Translate |
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<html5media height="1024" width="870">File:Stage17 embryo and membranes.mp4</html5media> | ||||||||||||||||||
Click Here to play on mobile device | smaller 800px movie Right lateral view of embryo enclosed in chorionic sac. scale bar 5 mm Stage 17 Facts: Week 6, 42 - 44 days, 11 - 14 mm This movie shows the size of both the extra-embryonic spaces and the embryo by week 6 of development. Extra-embryonic spaces
Embryo
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Cite this page: Hill, M.A. (2024, April 24) Embryology Carnegie Stage 17 Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_Stage_17_Movie
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G