File:Stage5 bf11b.jpg

From Embryology
Revision as of 07:50, 25 September 2011 by S8600021 (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Stage5_bf11b.jpg(464 × 600 pixels, file size: 96 KB, MIME type: image/jpeg)

Human Embryo Carnegie Stage 5

Carnegie Collection Embryo No.7700 (stage 5c)

Facts: About 12 days, embryonic disc, 0.204 x 0.165 mm, chorionic cavity, 0.55 x 0.498 mm and chorion, 0.948 x 0.835 mm

Features: implantation completed, inner cell mass, bilaminar embryo, trophoblast development

  • The conceptus completes implantation during this stage.
  • The trophoblast cells (syncytiotrophoblast and cytotrophoblast) proliferate. Syncytiotrophoblast cells continue to invade the maternal endometrium and cytotrophoblast cells form clumps that will later form sites of chorionic villi formation.
  • The maternal endometrium locally begins the decidual process and the endometrial stroma accumulates fluid (edematous).
  • The extraembryonic cavities begin to form.
  • The bilaminar embroyonic disc forms from the inner cell mass (embryoblast).


Stage 5 Links: Embryo No.8004 - Surface view | Embryo No.8004 - near implantation site | Embryo No.8004 - Stage 5b | Embryo No.8004 - Stage 5b labeled | Embryo No.8004 - Rotated view | Embryo No.7700 - implantation site | Embryo No.7700 - Stage 5c | Implantation | Week 2
Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline



Cite this page: Hill, M.A. (2024, June 22) Embryology Stage5 bf11b.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage5_bf11b.jpg

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

File history

Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan

GwalagizhiNyangagiDimensionsUserComment
current14:49, 23 September 2011Thumbnail for version as of 14:49, 23 September 2011464 × 600 (96 KB)S8600021 (talk | contribs)==Human Embryo Carnegie Stage 5== Carnegie Collection Embryo No.7700 (stage 5c) Facts: Week 1-2, size 0.1 - 0.2 mm Features: implantation completed, inner cell mass, bilaminar embryo, trophoblast development {{Carnegie Embryo Stage5}} {{Template:Carne