From Embryology

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Fig 131. Section through the Internal Ear of an Embryonic Sheep 28 mm in Length

After Bottcher.


D.M. dura mater; R. V. recessus labyrinthi ; H.V.B. posterior vertical semicircular canal ; U. utriculus ; H.B. horizontal semicircular canal ; b. canalis reunions ; a. constriction by means of which the sacculus hemisphericus is formed ; /. narrowed opening between sacculus hemisphericus and utriculus ; C.C. cochlea ; C.C L . lumen of cochlea ; K.K. cartilaginous capsule of cochlea ; K.B. basilar plate ; Ch. notochord.


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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