PS102 Chapter Notes - Chapter 4: Fetal Alcohol Spectrum Disorder, List Of Greyhawk Characters, Asthma

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24 Jan 2017
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Prior to Birth
-fetus vulnerable to any number of influences immediately following conception
-number of environmental agents (teratogens) can cause damage during prenatal period
Teratogen:
-Greek word meaning “marvel” or “monster”
-negatively disrupt development during prenatal period
-diseases
-toxins
-drugs
-hormones
-nature and extent of impact on fetus depends on dose of teratogen, timing and extent of exposure, and
age of organism (zygote, embryo, fetus)
-not all teratogenic effects result in immediate physical impairment
-some health effects delayed and may not appear till later in life
Some teratogens:
1) Rubella
-three day measles
-over half of infants exposed during embryonic period suffer from serious defects
-deafness, intellectual disability, internal system defends
-infants exposed in fetal period show fewer physical defects however are at increaked risk of
mental illness, diabetes, cardiovascular disease, anxiety, and thyroid and immune
function problems in adulthood
2) Syphilis, genital herpes, AIDS
3) Marijuana:
-prenatal exposure linked to disturbances in executive functioning
-cognitive distubance caused difficulties with impulsiveness, overactivity, inattention, problem
solving
-increased risk of depression, anger, aggression
4) Tobacco:
-increases likelihood of miscarriage
-low birth weight
-increased risk for cleft lip and palate as well as premature birth
-related to other postnatal risks: sudden infant death syndrome, asthma, cancer
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Document Summary

Fetus vulnerable to any number of influences immediately following conception. Number of environmental agents (teratogens) can cause damage during prenatal period. Nature and extent of impact on fetus depends on dose of teratogen, timing and extent of exposure, and age of organism (zygote, embryo, fetus) Not all teratogenic effects result in immediate physical impairment. Some health effects delayed and may not appear till later in life: rubella. Over half of infants exposed during embryonic period suffer from serious defects. Infants exposed in fetal period show fewer physical defects however are at increaked risk of mental illness, diabetes, cardiovascular disease, anxiety, and thyroid and immune function problems in adulthood: syphilis, genital herpes, aids, marijuana: Prenatal exposure linked to disturbances in executive functioning. Cognitive distubance caused difficulties with impulsiveness, overactivity, inattention, problem solving. Increased risk of depression, anger, aggression: tobacco: Increased risk for cleft lip and palate as well as premature birth.

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