General Anatomy · Reproductive System · Hard

Blastocyst

Meaning: An early embryo several days after fertilisation, forming a hollow ball of cells that implants in the womb.

In practice: In IVF, the embryo is often transferred at the blastocyst stage on day five.

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Which word means: A butterfly-shaped gland in the neck that controls metabolism.

Which word means: The paired folds of skin that form the lips of the vulva on either side of the vaginal opening.

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