File:Cranial placodes in the trilaminar embryo.jpg
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| Description | Figure 1 CRANIAL PLACODES in the TRILAMINAR EMBRYO. This figure represents a dorsal view of the ectodermal surface of a trilaminar embryo, prior to neural tube formation (K. Altdorfer, https://slideplayer.com/slide/12872844/). As the neural plate forms, a horseshoe shaped region peripheral to the cranial end of the neural ectoderm, called pre-placodal ectoderm (PPE), forms localized thickenings, “cranial placodes”, for specialized structures including the lens. A number of cranial placodes are indicated by circles and labeled. The lens placode responds to signaling pathways involving FGF, BMP, Notch, Wnt, betacatenin, and others described elsewhere in the text. |
| Date | |
| Source | https://www.frontiersin.org/journals/ophthalmology/articles/10.3389/fopht.2024.1434327/full Greiling TM, Clark JM and Clark JI (2024) The significance of growth shells in development of symmetry, transparency, and refraction of the human lens. Front. Ophthalmol. 4:1434327. doi: 10.3389/fopht.2024.1434327 |
| Author | Greiling TM, Clark JM and Clark JI |
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© 2024 Greiling, Clark and Clark. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
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| current | 21:36, 30 October 2024 | | 886 × 742 (93 KB) | Rasbak (talk | contribs) | {{Information |description=Figure 1 CRANIAL PLACODES in the TRILAMINAR EMBRYO. This figure represents a dorsal view of the ectodermal surface of a trilaminar embryo, prior to neural tube formation (K. Altdorfer, https://slideplayer.com/slide/12872844/). As the neural plate forms, a horseshoe shaped region peripheral to the cranial end of the neural ectoderm, called pre-placodal ectoderm (PPE), forms localized thickenings, “cranial placodes”, for specialized structures including the lens. A nu... |
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