KROK 1 Stomatology 2013 – Question 21 · KROK (Dentistry)
At a certain stage of development of a human embryo one can observe formation of a cavity in its structure, small light blastomeres on the periphery and large dark blastomeres at one of the poles. The embryo at this stage of development is called:
- A. Morula
- B. Blastocyst
- C. Zygote
- D. Gastrula
- E. Blastodisk
Hint
Think of the early embryo that has a fluid-filled cavity and two different cell populations: an outer layer and an inner cell mass at one pole.
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