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From Embryology

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FIG. 35. HEAD OF A CHICK AT THE END OF THE SECOND DAY VIEWED FROM BELOW AS A TRANSPARENT OBJECT.

(Copied from Huxley).

I. first cerebral vesicle, a. optic vesicle, d. infundibulum.

The specimen shews the formation of the optic vesicles (a), as outgrowths from the 1st cerebral vesicle or vesicle of the 3rd ventricle, so that the optic vesicles and vesicle of the 3rd ventricle at first freely communicated with each other, and also the growth of the lower wall of the vesicle of the 3rd ventricle into a process which becomes the infundibulum (d).



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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

Foster, M., Balfour, F. M., Sedgwick, A., & Heape, W. (1883). The Elements of Embryology. (2nd ed.). London: Macmillan and Co.

The Elements of Embryology (1883)

Volume 1 The History of the Chick: Egg structure and incubation beginning | Summary whole incubation | First day | Second day - first half | Second day - second half | Third day | Fourth day | Fifth day | Sixth day to incubation end
Volume 2 The History of the Mammalian Embryo: General Development | Embryonic Membranes and Yolk-Sac | Organs from Epiblast | Organs from Mesoblast | Alimentary Canal | Appendix

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GwalagizhiNyangagiDimensionsUserComment
current08:51, 11 January 2011Thumbnail for version as of 08:51, 11 January 2011246 × 253 (13 KB)S8600021 (talk | contribs)FIG. 35. HEAD OF A CHICK AT THE END OF THE SECOND DAY VIEWED FROM BELOW AS A TRANSPARENT OBJECT. (Copied from Huxley). I. first cerebral vesicle, a. optic vesicle, d. infundibulum. The specimen shews the formation of the optic vesicles (a), as outgr