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human embryogenesis, fertilization and fetus development

Human Embryogenesis, Fertilization And Fetus Development

Fetuses are not capable of feeling pain at the beginning of the fetal stage, and may not be able to feel pain until the third trimester. At this point in development, uncontrolled movements and twitches occur as muscles, the brain and pathways begin to develop.
• Week 16 to 25
A woman pregnant for the first time (i.e. a primiparous woman) typically feels fetal movements at about 21 weeks, whereas a woman who has already given birth at least two times (i.e. a multiparous woman) will typically feel movements by 20 weeks. By the end of the fifth month, the fetus is about 20 cm (8 inches).

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Filename:417121.jpg
Album name:People & Humanity
Rating (1 votes):55555
Keywords:#human #embryogenesis #fertilization #fetus #development
Filesize:38 KiB
Date added:Sep 22, 2011
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