DP Chapter 4 - Chapter 4 Prenatal Development and Birth PSY...

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Click to edit Master subtitle style 5/13/09 Chapter 4 Prenatal Development and PSY 231 A Eric Limegrover
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5/13/09 Chapter 4- Prenatal Development Time of fastest development in life span Environment extremely important Conception Ova travels from ovary to uterus Penetration by 1 of 300-500 sperm Outcome: single-celled ZYGOTE
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5/13/09 Prenatal Stages Germinal period: days 1-14 Implantation: 1/2 are successful Miscarriage: 15% (recognized) to 50% Embryonic period: 3rd to 8th week Organogenesis, Sexual differentiation Fetal period: 9th week – birth Proliferation, migration Differentiation of stem cells Ends in tremendous brain development
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5/13/09 Prenatal Environment Reciprocal influence Person and environment Good and bad influences important Teratogen: environmental agent Harms the developing fetus Critical Period: Organogenesis Genetic make-up: susceptibility
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5/13/09 Figure 4.3
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DP Chapter 4 - Chapter 4 Prenatal Development and Birth PSY...

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