PSY 205 Chapter Notes - Chapter 10: Fetal Alcohol Spectrum Disorder, Prenatal Development, Congenital Heart Defect

• School: Syracuse University
• Department: Psychology
• Course: PSY 205
• Professor: Houck

Document Summary

Development : the sequence of age-related changes that occur as a person progresses from. Prenatal period : extends from conception to birth, usually encompassing nine months of: germinal stage : the first phase of prenatal development, encompassing the first 2 pregnancy weeks after conception. Begins when a zygote is created through fertilization. Placenta : a structure that allows oxygen and nutrients to pass into the fetus from the mother"s bloodstream and bodily wastes to pass out to the mother. Forms within 1 week of fertilization: embryonic stage : the second stage of prenatal development, lasting from 2 weeks until the end of the second month. Arms, legs, hands, feet, fingers, toes, eyes, and ears are visible. Most vulnerable stage, therefore most miscarriages occur during this time period: fetal stage : the third stage of prenatal development, lasting from 2 months through birth.