Hi, good morning . how are you my friend ? I hope everything's fine.Now I am busy to complete the task assigned to me . so I decided to forget my past writings on the uniqueness of human talent. Instead , I'll be writing about child development .So , please do not feel boring .Whatever it is , my writing are still associated with human nature. Next time, when i finish my assignment, i will write back about Human Talent ( human uniqueness).Don't Worry :D . Wait for me..
Lets start with ????? Relax,relax...
1. Pre-natal Phase
> First Trimester ( week 1-12 )
> Second Trimester ( week 13-24 )
> Third Trimester ( week 25-38 )
Starting from: ( It takes 9 month )
sperm + Ovum = zygote
[ First Trimester ]
i. Germ Phase
Occurs about two weeks a few hours after fertilization between the sperm with the ovum
The resulting zygote inherits many of the features of both parents and ancestors.
ii.Zygote Phase
Cell divides into two cells, then each cell divides into two cells to produce four cells. The next 4 cell divides again to produce 8 cells and subsequently to form 16 cells, 32 cells and so on until the formation of a host of organized cells did not change analyzed as a ball. Structure 16 is called the morula.
Skin consists of two cells, the outer skin layer and clusters of cells in one section. Outer skin layer will form the placenta, the tissue layer that provides a surface that will connect the fetus with his mother's womb.
iii. Blastosista Phase
Then a space formed in the morula and change morula to blastosista .
Blastosista gently propelled towards the uterus and embedded into the wall of the uterus.
During the embedding process, blastosista is filled with liquid that separates into two layers . The outer layer is responsible for embedding process and form a layer of the embryo.
Blastosista travel to get to the uterus wall .It takes five to six days. By day twelve, blastosista are fully embedded in the wall of the uterus.
iiii.Embryo Phase
Development began in the brain and head. The nervous system is must be complete to allow other systems to function.
The heart begins beating at the end of week 3. All major organs formed during week 4 to week-8. During the week-6, the head and eyes is changing, while front parts appeares before back parts .
At week 8, her/his head slightly bigger compared with her/his body size. At the head has already emerged ear, nose and mouth. Hands and feet contain the fingers already and opened .The end of eight weeks, the embryo is equipped with basic ability such as the hearing, eyesight, bones, flesh, skin and organs , but does not work anymore. Embryo has the reproductive organs, the testes in male embryos and ovaries in female embryos.
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