File:Frazer1926 plate01.jpg

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Plate 1.

Fig. 1. Head of embryo of 4-9 mm., seen from the left. P. pericardium; C. 1, first cervical myotome; Ot.,otocyst.

Fig. 3. The precervical sinus in an embryo of 8 mm. seen from the left side. For description see text.

Fig.4. Region of precervical sinus in 10mm. embryo. Left side. P,pericardium; I, II, III, pharyngeal arches. The widely open placodal recess of vagus, pl.a.X, is below and behind the narrow duct, pl.d.IX, leading to the glossopharyngeal ganglion. The epipericardial ridge is very prominent below and behind the third arch.

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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: Fig. 1. Embryo 4-9 mm | Fig. 2. Semi-schematic pharyngeal region | Fig. 3. Embryo 8 mm | Fig.4. Embryo 10 mm | Fig. 5. Embryo 12 mm | Fig. 6. Embryo 10 mm | Fig. 7. Third Arch | Fig. 8. Laranryngeal Area of Head | Plate 1. Fig.1,3,4


Frazer JE. The disappearance of the precervical sinus. (1926) J Anat. 61(1): 132-43. PMID 17104123.

Cite this page: Hill, M.A. (2024, April 20) Embryology Frazer1926 plate01.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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