File:Teacher1925 plate04.jpg

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Plate 4, fig. 4. Teacher-Bryce Ovum No. 2

Photomicrograph of Section 28.2.2 for comparison with the drawing. This section passes through the centre of the operculum. Only the yolksac appears in it.

Note the tearing of the blastocyst wall from the blood of the intervillous space close to the operculum, the coaguluin and its situation at the dependent aspect of the blastocyst (dorsal decubitus of body) and the large venous sinus below the ovum.

X about 25. Photograph by J. H. T.


Figure Links: text-fig. 1 | text-fig. 2 | text-fig. 3 | text-fig. 4 | text-fig. 5 | plate 1 | plate 2 | plate 3 | plate 4 | plate 11 | fig. 17 | fig. 18 | fig. 19 | Teacher 1925 | Carnegie stage 5 | Carnegie stage 6
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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Reference

Teacher JH. On the implantation of the human ovum and the early development of the trophoblast. (1925) J Obst. Gynaecol. 31(2); 166-217.


Cite this page: Hill, M.A. (2024, March 4) Embryology Teacher1925 plate04.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Teacher1925_plate04.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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