File:Hill1924 plate28-2.jpg: Difference between revisions

Plate 28

Figs. 33 a, 33 6, 33 c—Blastocyst 38, sections 1/2, 16/1, and 2/2 (x 400). In fig. 33 a, which passes through the central region of the embryonal ecto- derm (e.ect.), the covering trophoblast has disappeared and a slight depression is present on the surface of the ectodermal mass, the cells of which are now assuming a columnar arrangement. The covering trophobla3t (c.tr.) is still present over the more peripheral portion of the embryonal ectoderm (figs. 33 6 and 33 c).

Fig. 34.—Blastocyst 42. Section 7/2 ( x 420). sh.ect., shield-ectoderm.

Plates: Plate 24 | Plate 25 | Plate 26 | Plate 27-1 | Plate 27-2 | Plate 28-1 | Plate 28-2 | Plate 29

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1924 Cat Development: 1. Ovum of the Cat | 2. Process of Cleavage | 3. Formation of the Blastocyst | 4. Discussion | Plates | cat

Reference

Hill, J. P., and Tribe, M. 1924. The early development of the cat (Felis domestica). Quart. J. Microsc. Sci, 68, 513-602.

Cite this page: Hill, M.A. (2024, April 25) Embryology Hill1924 plate28-2.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hill1924_plate28-2.jpg

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