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Human Reproduction
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Fallopian tube “ovulation” ovary
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“I’m waiting…”
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Y X
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Y
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Y Looks like we have a winner!
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Cell Division
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Identical Twins
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Fraternal Twins
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3 weeks The nervous system starts to develop
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The top part “zips up” to form the brain The bottom will become the spinal cord
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Head The embryo already has a beating heart... 4 weeks
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“What is this?” …a face only a mother could love! eyes 5 weeks
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“Here’s lookin’ at you kid!” 6 weeks
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By the 12th week (3rd month),
the eyes have closed. They will stay shut for another 3 months.
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Fingers and toes begin to form 5 weeks
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Week 11 Fingers form on a hand that’s the size of a teardrop
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Sonogram at 5 weeks
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Week 6
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1/2 inch long Week 7
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Week 7
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The baby is the size of a walnut. Week 8
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Week 12 (3 months)
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Week 16 (4 months)
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Amniocentesis
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“Karyotype”
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Week 22 5 1/2 months Mothers are now beginning to look pregnant ?
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cervix Ouch!
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Week 40 9 months
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The End
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