Fig. 461. Section through head of chick of three days' incubation
The thickened portion of ectoderm is known as the lens area (Fig. 460). The latter next becomes depressed against the outet surface of the optic vesicle forming a distinct lens invagination (Fig. 461).
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Cite this page: Hill, M.A. (2019, January 18) Embryology Bailey461.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Bailey461.jpg
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