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Chapter 11

PSYChapter 11.doc

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Dax Urbszat

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Jan62004 CHANAPSNotes From ReadingCHAPTER 11 HUMAN DEVELOPMENT ACROSS THE LIFESPANIProgress Before Birth Prenatal DevelopmentAIntroduction1 Developmentthe sequence of age related changes that occur as a person progresses from conception to death Incl both biological and behavioral changes 2Zygotea one celled organism formed by the union of a sperm and egg 3Prenatal Periodperiod from conception to birth aprox 9 months marked by rapid development until tapering off before birthBThe Course of Prenatal Development1Germinal Stagefirst phase of prenatal development encompassing the first 2 weeks after conceptionaBegins when zygote is created through fertilizationbPlacentastructure that allows oxygen and other nutrients to pass into the fetus from the mothers bloodstream and bodily wastes to pass out to the mother Takes place during implantation process 2Embryonic Stagesecond stage of prenatal development lasting from 2 weeks until the end of the second month aMost vital organs and bodily systems begin to form in the developing organism known as an embryobHeart spine brain form3Fetal Stagethe 3rd stage of prenatal development lasting from 2 months through birthaRapid bodily growth muscles and bones begin to form bKnown as a fetuscAge of Viabilitythe age at which a baby can survive in the event of a premature birth ie 2226 weeksCEnvironmental Factors and Prenatal Development1Maternal Nutritionsevere maternal malnutrition can lead to increases in the birth complications and neurological defects of a newborn2Maternal Drug Usemajor source of concern about fetal and infant well being as many drugs consumed by a pregnant women can be passed on to the placenta aFetal Alcohol Syndromecollection of congenital inborn problems associated with excessive alcohol use during pregnancy Incl hyperactivity retarded mental and motor development 3Maternal Illnessfetus is defenseless against infections because its immune system matures relatively late in the prenatal period May incl AIDS Flu etc 4Prenatal Health Caregood quality medical care that begins early in pregnancy is associated with reduce prematurity and higher survival rates for infants IIThe Wondrous Years of ChildhoodAExploring the World Motor Development1Motor Developmentrefers to the progression of muscular coordination required for physical activities 2Basic Principles17
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