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The Implantation Reaction

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Biology of the Uterus

Abstract

Implantation involves the attachment of the blastocyst to the wall of the uterus with, in some cases, the embedding of the entire ovum in the uterine wall. Associated with it are very profound and characteristic changes in the endometrium both during preparation for implantation and following attachment of the blastocyst. In this chapter, the uterine changes that take place during preparation will be considered first and then the changes during the process of implantation. The former occur regularly and frequently throughout the life of most female mammals, whereas the latter are rarer events, especially in women. This division of the subject is also convenient for the consideration of the control mechanism involved. Whereas the preparative changes are largely directed by the varying levels of the hormones secreted by the ovary, once the implantation process has been initiated hormones play a largely permissive role.

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  1. Department of Physiology, Royal Veterinary College, University of London, London, England

    Colin A. Finn

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    Ralph M. Wynn

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Finn, C.A. (1977). The Implantation Reaction. In: Wynn, R.M. (eds) Biology of the Uterus. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-2271-9_9

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