File:Kollmann356.jpg: Difference between revisions

Fig. 356. Foregut of a human embryo of 13.8 mm

In the sagittal section.

(Anatomical Collection in Basel.)

For orientation embryo is upward and to the left is the adjacent brain as indicated by the heart the bottom and right. The head the embryo is straight. The lower jaw (mandibular arch) and the associated tongue clearly separated. The mouth opening leads into the plates foregut, which is curved over the back of the tongue downward (inferior) laryngeal and turns into the esophagus (dorsal) and the adieus with the trachea (anteriorly) splits. The primitive nasal cavity is through the primitive choanae in connection with the foregut. In the roof of the primitive nasal cavity from the brain of an olfactory nerve. The upper wall of the foregut is still in connection with the investment of the hypophysis.

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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)

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 19) Embryology Kollmann356.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Kollmann356.jpg

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Fig. 356. Kopfdarm eines menschlichen Embryo von 13,8 mm. Im Sagittalschnitt. (Anatomische Sammlung in Basel.)

Zur Orientierung ist nach oben und nach links die angrenzende Partie des Gehirns angegeben ebenso nach unten und rechts der Herzwulst. Der Kopf des Embryo ist gerade gerichtet. Der Unterkiefer (Mandibuiarbogen) ist von der damit verbundenen Zunge deutlich getrennt. Die MundöfFnung führt in den platten Kopfdarm, der sich bogenförmig über den Zungenrücken nach abwärts (kaudal) wendet und sich in den Ösophagus (dorsal) und den Aditus laryngis mit der Trachea (ventral) spaltet. Die primitive Nasenhöhle steht durch die primitiven Choanen mit dem Kopfdarm in Zusammenhang. In das Dach der Nasenhöhle dringt vom Gehirn her der Nervus olfactorius ein. Die obere Wand des Kopfdarms steht noch in Verbindung mit der Anlage der Hypophysis.