Embryonic DevelopmentWhat are the stages of human embryo development from a zygote to feotus and how did I grow from a sperm and egg?

Expert Answers
bandmanjoe eNotes educator| Certified Educator

That is correct.  When an egg is fertilized by a sperm, the fertilized egg is now a single cell with a full complement of chromosomes, called a zygote.  The zygote will undergo normal cell division for about a week, at which point it will be called an embryo.  The cell division will continue, major organ systems will start to be produced, and in about 8 weeks time, it is now called a fetus.  The unborn child will continue to get larger and develop all the rest of its organ systems, until about 40 weeks, full term, it is born into the outside world.

litteacher8 eNotes educator| Certified Educator

I think you will find this link helpful, as this gets complex.


Basically, when the sperm meets the egg it forms a zygote, a fertilized egg.  That egg develops into an embryo, into a fetus, and then the baby is born.



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