File:Atwell1918 fig02.jpg

Fig. 2 Sagittal section of head end of a ten-day rabbit embryo

(27D) showing oral membrane intact. X 50. Nasal end at right. 10. p. inf., primitive infundibulum; R, Rathke’s pouch; or. pl.., oral plate; S., Seessel’s pouch; nc., notochord.

Figure 2 presents a sagittal section of a timed ten—day embryo (27D). It is slightly older than the preceding, but the oral membrane is still unbroken. A comparatively large evagination of the brain wall is seen dorsal to Rathke’s pocket. This corresponds to the ‘primitive Trichter’ of Mihalkovics. In this embryo the extremity of the notochord is in close contact with the wall of hypophysis anlage.

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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)

See also Atwell WJ. The development of the hypophysis cerebri in man, with special reference to the pars tuberalis. (1926) Amer. J Anat. 37: 139-193.

Links: Pituitary Development | Rabbit Development

Reference

Atwell WJ. The development of the hypophysis cerebri of the rabbit (Lepus Cuniculus L.). (1918) Amer. J Anat. 24(2): 271-337

Cite this page: Hill, M.A. (2024, April 25) Embryology Atwell1918 fig02.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Atwell1918_fig02.jpg

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