File:Kollmann346.jpg

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Fig. 346. Human embryo of 8.3 mm CRL (fourth or the beginning of the fifth week)

(After Rabl)


The mouth opening is due to the cerebrum and the overhanging both nasal process is a horizontal column that on the sides of the olfactory fields, which emerge later the nose dimples striking.

The mandibular arch is in a strong upper and lower jaw protrusion differentiates the second branchial arch stands with its front end steeply to the lower jaw protrusion into the air. The third and fourth arch prae cervical are basically the sinus and are of the dorsal and distal side, surrounded by a strongly developed retrobranchial bar.


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)

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, March 28) Embryology Kollmann346.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Kollmann346.jpg

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


--Mark Hill 09:40, 19 February 2012 (EST) Appears to be Carnegie stage 12 embryo.


Fig. 346. Menschlicher Embryo von 8,3 mm Nackensteifllänge und vom Ende der vierten oder dem Anfang der fünften Woche.

(Nach RabL)


Die Mundöffnung stellt wegen des überhängenden Großhirns und der beiden Nasenfortsätze eine querliegende Spalte dar, an deren Seiten die Riech- felder, die späteren Nasengrübchen auffallend hervortreten.

Der Mandibularbogen ist in einen kräftigen Ober- und Unterkieferfortsatz differenziert Der zweite Kiemenbogen erhebt sich mit seinem vorderen Ende steil gegen den Unterkieferfortsatz in die Höhe. Der dritte und vierte Bogen liegen im Grunde des Sinus praecervicalis und sind von der dorsalen und distalen Seite her von einer kräftig entwickelten Retrobranchialleiste umzogen.

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