Lesson 26: Embryology Week 2 Quiz

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  1. 1. The baby and mother share a blood supply.

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  2. 2. The outer layer of the 2-week embryo is called:

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  3. 3. The placenta is made entirely of cells from the developing embryo.

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  4. 4. Which is NOT true about the chorionic villi?

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  5. 5. Some layers and structures in embryonic development are temporary.

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  6. 6. Which one of these will NOT develop from the inner cell mass?

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  7. 7. Pregnancy tests detect levels of progesterone.

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  8. 8. Which one of these does NOT come from the endoderm?

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  9. 9. What does the hormone progesterone NOT do?

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  10. 10. During the first week of development, the embryo (or “pre-embryo”) was getting its energy from the nutrients that had been stored up inside the ovum.

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  11. 11. What is the lining of the uterus called?

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  12. 12. Cancers that arise from cells of the mesoderm are called:

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