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Fig. 13 Section through Optic Vesicle

Just cranial to this point the two folds of the medullary groove have fused. The fore-brain shows elongated, gutter-like evaginations of its later walls which are the commencing optic vesicles. The walls of these vesicles are many cells thick, and are in close contact with the external ectoderm (fig.13).


A 13-14 somite stage embryo would be similar to a Carnegie stage 11 (23 - 26 days) Somite Number 13 - 20.


13-14 Somite Paper: Plate 1 | Plate 2 | Plate 3 | Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Fig 10 | Fig 11 | Fig 12 | Fig 13 | Fig 14 | Fig 15


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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

Low A. Description of a human embryo of 13-14 mesodermic somites. (1908) J Anat Physiol. 42(3): 237-51. PMID 17232769 | PMC1289161



Cite this page: Hill, M.A. (2024, June 18) Embryology Low 13.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Low_13.jpg

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