Multiple choice

In a pregnant female, which of the following develops into the placenta?

  1. A trophectoderm

  2. Inner cell mass of the blastocyst

  3. Decidua

  4. Myoblast cells

  5. Myometrium
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A Correct answer
Explanation

The developing embryo has two main populations of cells: an inner cell mass and a trophectoderm. The trophectoderm cells lie at the outer surface of the developing embryo and will become the placenta.

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