KROK 1 Stomatology 2013 – Question 23 · KROK (Dentistry)
For an unknown reason the fertilization membrane of an embryo dissolved in the fallopian tube in the first critical period. What complication of pregnancy is possible in this case?
- A. Invagination of the blastocyst wall
- B. Embryonic death
- C. Return of blastocyst back to the ampullary portion of the tube
- D. Formation of two blastocysts
- E. Embryo implantation into the Fallopian tube
Hint
Consider what normally prevents the cleaving embryo from attaching to the epithelium during its passage along the uterine tube.
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