File:Wallaby embryo 03.jpg
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Tammar Wallaby Embryo and Fetus
The day 18 embryo free of the fetal membranes, clearly distinguishing between the vascular and non-vascular regions of the yolk sac (BYS: bilaminar yolk sac; TYS trilaminar yolk sac; ST sinus terminalis).
Legend
- All - allantois
- Am - amniopore
- BYS - bilaminar yolk sac
- TYS - trilaminar yolk sac
- Sh - shell coat
- ST - sinus terminalis
- Ut - uterine epithelium
- Wallaby Links: Wallaby Embryo and Fetus | Embryo and Membranes day 18 | Embryo day 18 | Fetus day 23 | Fetus day 25 | Kangaroo Development
Reference
<pubmed>21854600</pubmed>| PMC3170617 | Evodevo.
Menzies et al. EvoDevo 2011 2:16 doi:10.1186/2041-9139-2-16
© 2011 Menzies et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:11, 23 May 2012 | | 1,000 × 986 (79 KB) | Z8600021 (talk | contribs) | ==Tammar Wallaby Embryo and Fetus== (a) At day 18, the conceptus emerges form the ruptured shell coat (Sh) so that the two regions of the placenta can make a close attachment to the uterine epithelium. The right side of the embryo is already coat-free, w |
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