What is the hollow ball of embryonic cells that enters the uterus from the Fallopian tube and eventually implants?

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Quizplus · Accepted Answer

The blastocyst is a hollow ball of embryonic cells that forms after fertilization and travels down the Fallopian tube to eventually implant in the uterus. The mucus plug refers to a thick substance that blocks the cervix during pregnancy to prevent bacteria from entering the uterus. Miscarriage refers to the loss of a pregnancy before 20 weeks gestation. The amnion is a membrane that surrounds the developing embryo and helps form the amniotic sac.

What Is the Hollow Ball of Embryonic Cells That Enters