File:The changing morphology and tissue composition of the mouse conceptus.jpg
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| Description | Figure 1. (a) The changing morphology and tissue composition of the mouse conceptus. After implantation, the conceptus is surrounded by maternal tissues (not shown). The intraembryonic cavities and the extraembryonic structures are labelled. Use (b) as a key for tissue identities. (b) The sequential emergence of embryonic and extraembryonic tissues of the conceptus starting from the fertilized egg. Cell fate commitment of TE-derivatives is seen first leading up to and in preparation for implantation, while those of epiblast-derivatives arise following gastrulation. The black-and-white vertical line demarcate the primitive streak and the subsequent fate of cells that ingress through it. The extraembryonic membranes are primarily bilayers while the fetus itself is made up of three germ layers (ectoderm, mesoderm and endoderm) and germ cells. The embryonic or extraembryonic status of any tissue can be assessed by tracing its fate forwards through developmental time (to the right) and seeing if it contributes to embryonic component or only extraembryonic structures. (TE, trophectoderm; ICM, inner cell mass; PrE, primitive endoderm; VE, visceral endoderm.) |
| Date | |
| Source | https://royalsocietypublishing.org/doi/10.1098/rstb.2021.0255 Thowfeequ Shifaan and Srinivas Shankar. (2022) Embryonic and extraembryonic tissues during mammalian development: shifting boundaries in time and spacePhil. Trans. R. Soc. B37720210255 http://doi.org/10.1098/rstb.2021.0255 |
| Author | Thowfeequ Shifaan and Srinivas Shankar. |
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© 2022 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
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| current | 10:10, 1 September 2024 | | 1,881 × 1,891 (651 KB) | Rasbak (talk | contribs) | {{Information |description= Figure 1. (a) The changing morphology and tissue composition of the mouse conceptus. After implantation, the conceptus is surrounded by maternal tissues (not shown). The intraembryonic cavities and the extraembryonic structures are labelled. Use (b) as a key for tissue identities. (b) The sequential emergence of embryonic and extraembryonic tissues of the conceptus starting from the fertilized egg. Cell fate commitment of TE-derivatives is seen first leading up to... |
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