Implantation definitions Flashcards

The process of a blastocyst embedding into the endometrium, occurring around days 6 to 9 post-conception.

An early-stage embryo consisting of a sphere of cells surrounding a fluid-filled cavity, crucial for implantation.

The inner lining of the uterus where the blastocyst implants, becoming receptive due to hormonal changes.

The outer cell layer of the blastocyst that adheres to and invades the endometrium during implantation.

The inner layer of trophoblast cells that remain distinct and contribute to placental development.

The outer layer of trophoblast cells that erode the endometrium and secrete enzymes and growth factors.

A hormone that, along with progesterone, prepares the endometrium for implantation.

A hormone that increases endometrial receptivity for implantation alongside estrogen.

The inner cell mass of the blastocyst that will develop into the embryo.

A two-layered structure formed by the embryoblast, crucial for early embryonic development.

A fluid-filled space that forms between the embryonic disc and trophoblast, leading to the amniotic sac.

A hormone secreted by the syncytiotrophoblast, detectable in pregnancy tests.

The process of placenta formation, involving the trophoblast layers post-implantation.

The rapid increase in the number of cells, such as endometrial cells covering the blastocyst.

The structure consisting of the endometrium and other layers, where implantation occurs.