File:Odgers1937 plate02.jpg

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Plate 2

Fig. 1. A section (x100) 20, u beyond one extremity of the embryonic disc. It corresponds to the plane A in Text-fig.1 and shows that the two exocoelomic channels have joined round this end of the disc.

Fig. 2. A photograph of a section (x100) of the Peters ovum, kindly sent me by Prof.0. Grosser. It shows the exocoelomic channel on the left intact, bordering the embryonic disc and the yolk sac, while that on the right has only its medial wall left.

Fig. 3. A section (x 150 ?)ofthe Tennant-Ramsey ovum (reproduced by courtesy of the Editors of Surgery, Gynecology and Obstetrics). It shows the amniotic cavity, the embryonic disc and the yolk sac surrounded on either side and ventrally by the extra-embryonic coelom.

Fig. 4. A section (x100) 20/.z beyond the opposite extremity of the disc showing the two channels still separate from each other. This corresponds to the plane C in Text-fig.1.

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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)
Links: Plate 1 | Fig 1 | Fig 2 | Plate 2 | Fig 1 | Fig 2 | Fig 3 | Fig 4


Odgers PN. An early human ovum (Thomson) in situ. (1937) J Anat. 71(2): 161-168.3. PMID 17104634

Cite this page: Hill, M.A. (2024, May 24) Embryology Odgers1937 plate02.jpg. Retrieved from

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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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