File:S kowalevskii 36 hs.jpg
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S_kowalevskii_36_hs.jpg (600 × 331 pixels, file size: 103 KB, MIME type: image/jpeg)
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[edit]DescriptionS kowalevskii 36 hs.jpg |
Español: Figura 3. Histología y estructura fina del embrión de Saccoglossus kowalevskii a las 36 h pf. D) Secciones sagitales semifinas de dos muestras. Al inicio de la formación del mesodermo, el endodermo ( ed ) muestra dos constricciones poco profundas ( puntas de flecha ) que reflejan la futura organización corporal tripartita del embrión. El embrión inferior es ligeramente mayor, como lo indica el protocele completamente separado ( pc ). El mesodermo primordial ( pmd ) comienza a establecerse lateralmente, en las regiones media y posterior del endodermo. La matriz extracelular ( ecm ) está indicada por la línea de puntos. E - F) Micrografías electrónicas de barrido. Embrión disecado sagitalmente que muestra la organización interna del extremo posterior (obsérvese la posición del telotroque ( tt )). El ectodermo y el endodermo están en estrecho contacto entre sí. Una tercera capa de células, el mesodermo primordial, se extiende entre el ectodermo y el endodermo. ac centriolo accesorio, bb cuerpo basal, ecc célula ectodérmica, ci cilio, cr raicilla ciliar, mi mitocondria, mv microvellosidades, nn red nerviosa, yema , za zonula adherens. |
Date | |
Source | A detailed description of the development of the hemichordate Saccoglossus kowalevskii using SEM, TEM, Histology and 3D-reconstructions. (2013). Frontiers in Zoology vol. 10. num 53 https://frontiersinzoology.biomedcentral.com/articles/10.1186/1742-9994-10-53 |
Author | Sabrina Kaul-Strehlow ; Thomas Stach |
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current | 01:15, 6 November 2023 | 600 × 331 (103 KB) | Sanador2.0 (talk | contribs) | Uploaded a work by Sabrina Kaul-Strehlow ; Thomas Stach from A detailed description of the development of the hemichordate Saccoglossus kowalevskii using SEM, TEM, Histology and 3D-reconstructions. (2013). Frontiers in Zoology vol. 10. num 53 with UploadWizard |
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Height | 331 px |
File change date and time | 21:51, 5 November 2023 |
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