3 Major Stages of Fetal Development.doc

3 Major Stages of Fetal Development.doc - 3 Major Stages of...

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3 Major Stages of Fetal Development watch entire video: 00:00 – 3:39 1. When do the trimesters last (in weeks)? 1 st trimester is from week 1-12 2 nd trimester is from week 13-26 3 rd trimester is from week 27-birth 2. When pregnant, why does the woman’s period stop? Because a sperm has fertilized an egg. 3. Where does the fertilized egg start to divide? Fallopian tube 4. By week 9, what does the embryo become? A fetus 5. At what point (in weeks) have the major organs of the nervous system already started to form?
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