File:Hamilton1943 plate02.jpg

Plate 2.

Fig. 5. A surface view of the endometrium of specimen No. 3. The smooth elevation produced by the implanting embryo is seen. The endometritnn shows fissures :md crct'iccs which for the most part are associated with the mouths of the uterine glands. x 15.

Fig. 6. A high power view of the embryonic disc showing the columnar nature of the embryonic ectoderm and the arrange ment of the endoderm. with Heuser’s membrane. The cells of the latter are continuous x 400.

Fig. 7. A general low power view of the implanting embryo and surrounding endometrium. The latter is oedematous and in it there are many dilated blood vessels. The extent of the syncytiotrophoblast and cytotrophohlast in different parts of the vesicle is shown. The extra embryonic rnesoderm has been artificially separated from the cytolrophoblast except at the etnhryonic pole. The embryonic rudiment has difl'erentiated into a columnar ectodermal layer, which at the edge of the embryonic disc is continuous with the embryonic eetoderm of the amnion. and a mass of endodermal cells which with Heuser's membrane enclose a cavity, the primitive yolk sac. x no.

• 

  Fig 5

• 

  Fig 6

• 

  Fig 7

Reference

Hamilton WJ. Barnes J. and Dodds GH. Phases of maturation, fertilization and early development in man. (1943) J. Obstet. Gynaecol, Brit. Emp., 50: 241-245.

Cite this page: Hill, M.A. (2024, April 24) Embryology Hamilton1943 plate02.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hamilton1943_plate02.jpg

What Links Here?

© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G