File:Wallaby embryo 02.jpg: Difference between revisions

Latest revision as of 11:02, 29 July 2019

Tammar Wallaby Embryo and Fetus

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, while the embryo itself is still within the shell coat.

Legend

All - allantois
Am - amniopore
BYS - bilaminar yolk sac
TYS - trilaminar yolk sac
Sh - shell coat
ST - sinus terminalis
Ut - uterine epithelium

Reference

Menzies BR, Pask AJ & Renfree MB. (2011). Placental expression of pituitary hormones is an ancestral feature of therian mammals. Evodevo , 2, 16. PMID: 21854600 DOI.

Copyright

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.

Cite this page: Hill, M.A. (2024, May 5) Embryology Wallaby embryo 02.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Wallaby_embryo_02.jpg

What Links Here?

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:10, 23 May 2012		1,138 × 986 (89 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

You cannot overwrite this file.

File usage

The following page uses this file:

Kangaroo Development

@@ Line 1: / Line 1: @@
 ==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, while the embryo itself is still within the shell coat.
+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, while the embryo itself is still within the shell coat.
-(b) The d18 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).
-(c) Fetus at day 23 of pregnancy, showing the increase in the vascular region and the close attachment of the placenta to the uterine epithelium (Ut). The vitelline vessels are prominent.
-(d) Full term fetus at day 25 of pregnancy, about a day before birth. The allantois (All) is large but held within the folds of the yolk sac, which has become highly vascular. The fetus has well developed fore limbs ready for the climb to the pouch and the tongue is typically protruded (Am: amniopore).
 {{Tammar Links}}
 ===Reference===
+{{#pmid:21854600}}
-<pubmed>21854600</pubmed>| [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170617 PMC3170617] | [http://www.evodevojournal.com/content/2/1/16 Evodevo.]
+====Copyright====
-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.
+{{Footer}}
 [[Category:Kangaroo]]