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Fig. 426. Mesonephroi, a human embryo mesonephros of 9 mm CRL (week 5)

The anterior body wall as well, intestinal tract removed. (Anatomical Collection in Basel)

The heart and pulmonary system remained. The dorsal half shows the coelom and the two primitive kidneys (Mesonephroi). Over the anterior surface each primitive kidney is a narrow strip down the germ fold, plica germinative.

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
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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)


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 20) Embryology Kollmann426.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

Fig. 426. Mesonephroi, Urnieren eines menschlichen Embryo

von 9 mm Nackensteißlänge (5. Woche) gestreckt, die vordere Körperwand ebenso

das Darnu*ohr entfernt. (Anatomische Sammlung in Basel)

Das Herz und die Lungenanlage sind geblieben. Die dorsale Hälfte zeigt das Cölom und die beiden Urnieren (Mesonephroi). Über die vordere Fläche jeder Urniere läuft ein schmales Band herab, die Keimfalte, Plica germinativa.

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