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  2. Human embryonic development - Wikipedia

    en.wikipedia.org/wiki/Human_embryonic_development

    The embryo is joined to the trophoblastic shell by a narrow connecting stalk that develops into the umbilical cord to attach the placenta to the embryo. [11] [15] Arteries in the decidua are remodelled to increase the maternal blood flow into the intervillous spaces of the placenta, allowing gas exchange and the transfer of nutrients to the ...

  3. Timeline of human prenatal development - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_human_prenatal...

    (day 20 of fertilization. [1]) Primitive heart tube is forming. Vasculature begins to develop in embryonic disc. (day 20 of fertilization. [1]) Embryo at 4 weeks after fertilization. [3] A 10mm embryo from an ectopic pregnancy, still in the oviduct. This embryo is about five weeks old (or from the seventh week of menstrual age).

  4. Embryo transfer - Wikipedia

    en.wikipedia.org/wiki/Embryo_transfer

    Embryo transfer can be performed after various durations of embryo culture, conferring different stages in embryogenesis. The main stages at which embryo transfer is performed are cleavage stage (day 2 to 4 after co-incubation) or the blastocyst stage (day 5 or 6 after co-incubation). [10]

  5. Repeated implantation failure - Wikipedia

    en.wikipedia.org/wiki/Repeated_implantation_failure

    Repeated implantation failure (RIF) is the repeated failure of the embryo to implant onto the side of the uterus wall following IVF treatment. [1] Implantation happens at 6–7 days after conception and involves the embedding of the growing embryo into the mothers uterus and a connection being formed. [2]

  6. This Mother Had A Baby At 50 Without Intervention. Here's ...

    www.aol.com/mother-had-baby-50-without-113000047...

    The first IVF procedure was a wash—her doctor wasn’t able to do a transfer because none of the embryos ended up being viable after testing. The same thing happened with the second round.

  7. Prenatal development - Wikipedia

    en.wikipedia.org/wiki/Prenatal_development

    The embryo becomes embedded in the endometrium in a process called implantation. In most successful pregnancies, the embryo implants 8 to 10 days after ovulation. [7] The embryo, the extra-embryonic membranes, and the placenta are collectively referred to as a conceptus, or the "products of conception".

  8. What Alabama’s Embryo Ruling Means For People In Egg ... - AOL

    www.aol.com/alabama-embryo-ruling-means-people...

    Dr. Chen: It's important for you to know that you have a voice. You're a constituent. You do have a vote. You should definitely be able to talk to your legislators. Let them know exactly how you feel.

  9. Placental expulsion - Wikipedia

    en.wikipedia.org/wiki/Placental_expulsion

    As the fetal hypothalamus matures, the activation of the hypothalamic–pituitary–adrenal (HPA) axis initiates labor through two hormonal mechanisms. The end pathway of both mechanisms lead to contractions in the myometrium, a mechanical cause of placental separation, which is due to the sheer force and contractile and involutive changes that occur within the uterus, distorting the placentome.