Development of Human Foetus (2)

Biology

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Early development of an embryo until implantation (1)

While travelling down the Fallopian tube, the zygote undergoes multiple divisions through mitosis.

Early development of an embryo until implantation (2)

The first cell division produces a two-cell embryo

Early development of an embryo until implantation (3)

The following cell divisions will finally produce a morula

Early development of an embryo until implantation (4)

The morula then transforms into a blastocyst

Early development of an embryo until implantation (5)

The blastocyst will then implant in the endometrium and this process is called implantation

Early development of an embryo until implantation (6)

The blastocyst continues to grow into an embryo

Function of placenta

The placenta is formed from the mother's endometrial tissue and embryonic tissue that allows exchange of substances to occur by diffusion through it

The importance of thin membrane that separate the blood of the mother and the foetus (1)

It protects the foetus from certain dangerous chemical substances such as toxins and bacteria

The importance of thin membrane that separate the blood of the mother and the foetus (2)

It prevents the thin foetal blood vessels from bursting due to the mother’s high blood pressure

The importance of thin membrane that separate the blood of the mother and the foetus (3)

It prevents agglutination or blood clots from happening in the foetus

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