Implantation Timeline
Introduction
This page shows the timeline of human implantation and gives examples of other species. Note that while the commencement of implantation is relatively well defined, the individual events and even the definition of when implantation completes are quite variable.
During this period the uterine endometrium undergoes many changes and the implanting blastocyst has extensive trophoblast changes but little embryoblast development.
Some Recent Findings
* [1] |
Human Implantation
Human Development Overview to Implantation
Other Species
Baboon
Blastocyst implantation in the baboon usually occurs between 8 and 10 days post ovulation (see text below).[2]
Three distinct phases:
- regulated by estrogen and progesterone, changes in both the luminal and glandular epithelial cells in preparation for blastocyst apposition and attachment.
- further modulation of these steroid induced changes in both epithelial and stromal cells by embryonic signals.
- trophoblast invasion and the remodeling of the endometrial stromal compartment.
References
Reviews
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Articles
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Cite this page: Hill, M.A. (2024, June 10) Embryology Implantation Timeline. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Implantation_Timeline
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G