PS102 Lecture Notes - Lecture 11: Intellectual Disability, Fetal Alcohol Spectrum Disorder, Preterm Birth
Document Summary
Human development across the life span: development is the sequence of age-related changes that occur as a person progresses from conception to death. Progress before birth: prenatal development: zygote a one-celled organism formed by the union of sperm and an egg, prenatal period extends from conception to birth, usually encompassing nine months of pregnancy. The course of prenatal development: divided into 3 phases, the germinal stage (the first two weeks, the embryonic stage (two weeks to two months, the fetal stage (two months to birth) Embryonic stage: the embryonic stage is the second stage of prenatal development, lasting from two weeks until the end of the second month. Fetal stage: the fetal stage is the third stage of prenatal development, lasting from two months through birth, the age of viability the age at which a baby can survive in the event of premature birth.
