From Embryology

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Fig. 107. Transverse section through the head of a rabbit

The same age as fig. 106 b. (From Kolliker.)

B. is a more highly magnified representation of part of A.

rf. medullary groove ; mp. medullary plate ; rw. medullary fold ; h. epiblast ; dd. hypoblast ; dd'. notochordal thickening of hypoblast ; sp. undivided mesoblast ; hp. somatic mesoblast ; dfjj. splanchnic mesoblast; ph. pericardial section of bodycavity ; ahh. muscular wall of heart ; ihh. epithelioid layer of heart ; mes. lateral undivided mesoblast ; sw. fold of hypoblast which will form the ventral wall of the pharynx ; sr. commencing throat.


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

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 | Figures 1
Volume 2 - The History of the Mammalian Embryo: General Development | Embryonic Membranes and Yolk-Sac | Organs from Epiblast | Organs from Mesoblast | Alimentary Canal | Appendix | Figures 2

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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)

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