1190467
Descrição
Mapa Mental por Zeneatha Jònsson, atualizado more than 1 year ago
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Criado por Zeneatha Jònsson
aproximadamente 10 anos atrás
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Prenatal Development (conception-
implantation)
- 1. Ovum (female reproductive cell) is released from an ovary
- 2. Cilia (hair-like projections) move ovum along fallopian tubes
- 3. One sperm (male reproductive cell) merges with & fertilises, the ovum
- 4. A zygote (single cell formed as result of merging the sperm &ovum), continues down to the fallopian tube.
- 5. Zygote divides into a number of identical cells
- 6. Cell division becomes more orginized &specialised
- 7. The Blastocyst (a hollow sphere with specialized and orginised cells), implants itself into the uterine wall
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