File:Hertig1956 fig15-16.jpg

Fig. 15-16. Carnegie Stage 5

9-day specimen of Horizon Vb, characterized by syncytiotrophoblastic lacunae with early utero-placental circulation, amniogenesis, a simple bilaminar germ disc and only variable degrees of exocoelomie (Heuser’s) membrane formation.

15 Because the decidual reaction is not yet apparent, this ovum is considered to be slightly younger than the other two 9-day specimens illustrated on this plate. The trophoblastic lacunae contain few cellular elements in the plasma. indicating that at this stage a sluggish circulation begins Within the trophoblastic shell of the ovum. Carnegie Embryo 8215, Section 12-5-1-. X100.

16 Surface view of intact specimen. This endomctrium, both grossly and microscopically is slightly younger than that of the following specimens. Carnegie Embryo 8215, Sequence 3. X 22.

Figure Links: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9-10 | 11-12 | 13-14 | 15-16 | 17 | 18-19 | 20 | 21-22 | 23 | 24-25 | 26-27 | 28-29 | 30-31 | 32-33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 40 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | plate 1 | plate 2 | plate 3 | plate 4 | plate 5 | plate 6 | plate 7 | plate 8 | plate 9 | plate 10 | plate 11 | plate 12 | plate 13 | plate 14 | plate 15 | plate 16 | plate 17 | table 1 | table 1 image | table 2 image | table 3 image | table 4 | table 4 image | table 5 | table 5 image | All figures | 1956 Hertig | Embryology History - Arthur Hertig | John Rock | Historic Papers

Reference

Hertig AT. Rock J. and Adams EC. A description of 34 human ova within the first 17 days of development. (1956) Amer. J Anat., 98:435-493.

Cite this page: Hill, M.A. (2024, April 27) Embryology Hertig1956 fig15-16.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hertig1956_fig15-16.jpg

What Links Here?

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