PSYC 304 Lecture Notes - Lecture 6: Amniotic Sac, Fetal Alcohol Spectrum Disorder, Prenatal Development
Document Summary
Scientific study of ways people grow, change, and stay the same through lives from fertilization to death. Ch 3: stages of prenatal development: germinal stage: 1st two weeks. Zygote travels down to uterus becoming more complex attaches to wall: placenta development- exchange oxy, nutrition, waste, umbilical cord goes to placenta, amniotic sac- fluid filled balloon that protects and provides room. Sometimes crossed for genetic tests amniocentisis or dangerous abortions i. ii. If slight tear in amniotic sac woman is put on bed rest. If you puncture sac during amniocentisis it can cause a miscarriage: somewhat free pass on maternal effects, embryonic stage rest of 1st trimester, 2-12 weeks. Des (anti-miscarriage rx): around age 8 girls started to develop cancer and dead by 10; girls who didnt die where sterile. Alcohol: fas (fetal alcohol syndrome) = ld, adhd, facial deformities, motor skills. Nicotine: low birth weight, neurological vi. vii. viii. ix.
