The model represents the development of the human germ cells from fertilisation until the end of the 2nd month of pregnancy in 12 stages. Each stage can be removed from the common stand as an individual part and can be purposefully used for teaching and tests for the embryological specialist field.
Ovum at time of fertilisation (conception) with male gamete (sperm)
Zygote at 2-cell stage, Zygote at 4-cell stage, Zygote at 8-cell stage, Blastocyst, Germ cells, Embryo.