Stages of Development
Category: Altro
è stato aggiornato: 8 dic 2017
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Created byCandace Avalos
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Zygote was formed (trimester 1)The zygote divides and multiplies,
it continues to grow more and more.
(trimester 1)There are 100 cells by this time. (trimester 1)There are billions of cells (trimester 1)After the zygote divides, it travels
down the fallopian tubes and
implants itself in the lining of the uterus. (trimester 2)Blood vessels grow,
forming the placenta (trimester 2)Basic structures of the embryo start to
develop into areas that will become
the head,chest, and the abdomen
(trimester 2)The neural tube forms along the back of the embryo
which is developing into the
spinal cord and the brain. (trimester 2)The embryo is now called the fetus (trimester 3)The sex organs begin to differentiate (trimester 3)The fetus weighs around
1.4 pounds (trimester 3)The fetus is almost ready to give birth (trimester 3)The fetus is about now average weight
and has very little room to move
and birth becomes imminent (trimester 3)The heart begins to beat and
organs form and begin to
function properly (trimester 2)Article : Fetal development, what happens during the third trimester?
Publisher : Mayo foundation for Medical Education and research
Article ;
Fetal development week by week Site : babycenter.org]
Article : Stages of Pregnancy Site : my.clevelandclinic.org
Article :The 1st trimester Site : mayoclinic.com
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