From Embryology

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Fig. 2. Lateral view of the model of the pharynx of the model of embryo II

The embryo is represented as transparent. Magnified 25 diameters.

Hyp., hypophysis; 0e., oesophagus; Tr., trachea, V. PI, V. P.II, V. P.IIIand V. P.IV, first, second, third and fourth visceral pouches.

This embryo has a vertex-breach length of 6 mm. and a neck-breach length of 7 mm. It is about 24 days old or, in round numbers, it is an embryo of the 4th week.

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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 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Fig 10 | Fig 11 | Sudler 1902 | Historic Embryology Papers


Sudler MT. The development of the nose and of the pharynx and its derivatives in man. (1902) Amer. J Anat. 1:391–416.

Cite this page: Hill, M.A. (2024, February 22) Embryology Sudler1902-fig02.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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current23:06, 17 September 2015Thumbnail for version as of 23:06, 17 September 20151,000 × 701 (75 KB)Z8600021 (talk | contribs)
23:06, 17 September 2015Thumbnail for version as of 23:06, 17 September 20151,354 × 1,164 (191 KB)Z8600021 (talk | contribs){{Sudler1902 figures}}