File:Kollmann379.jpg

Fig. 379. The yolk sac, saccule vitellinus, the first organ of nutrition of the embryo

Enl. 24 time.

(According to Graf Spee.)

The embryo at this stage of development of the embryonic disc with ammonia, a gut stem, causing the embryo is attached to the chorion, and a large yolk sac.

This text is a Google translate computer generated translation and may contain many errors.

Images from - Atlas of the Development of Man (Volume 2)

(Handatlas der entwicklungsgeschichte des menschen)

Kollmann Atlas 2: Gastrointestinal | Respiratory | Urogenital | Cardiovascular | Neural | Integumentary | Smell | Vision | Hearing | Kollmann Atlas 1 | Kollmann Atlas 2 | Julius Kollmann

Links: Julius Kollman | Atlas Vol.1 | Atlas Vol.2 | Embryology History

Historic Disclaimer - information about historic embryology pages

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

Kollmann JKE. Atlas of the Development of Man (Handatlas der entwicklungsgeschichte des menschen). (1907) Vol.1 and Vol. 2. Jena, Gustav Fischer. (1898).

Cite this page: Hill, M.A. (2024, April 28) Embryology Kollmann379.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Kollmann379.jpg

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Fig. 379. Der Dottersack, Sacculus vitellinus,

das erste Organ für die Ernährnng des Embryo. Vergr. 24 mal.

(Nach Graf Spee.)

Der Embryo besteht auf dieser Entwicklungsstufe aus der Keimscheibe mit Amnion, aus einem Bauchstiel, wodurch der Embryo an das Chorion be- festigt ist, und aus einem großen Dottersack.