01:830:101 Chapter Notes - Chapter 11: Grey Matter, Stillbirth, Syphilis

• School: Rutgers University
• Department: Psychology
• Course: 01:830:101
• Professor: Professor Stephen Killianski

Document Summary

Development- the sequence of age-related changes that occur as a person progresses from conception to death. Zygote- a one-celled organism formed by the union of a sperm and an egg. Contains genes: carry the details fo your hereditary blueprints. Prenatal period- extends from conception to birth, usually encompassing nine month of pregnancy. Divided into three phases: germinal, embryonic, and fetal stage. Germinal stage- first phase of prenatal development, encompassing the first two weeks after conception. Begins when a zygote is created through fertilization. Implantation, when the cell mass implants itself into the uterine wall, placenta begins to form. Placenta- 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. Embryonic stage- second stage of prenatal development, lasting from two weeks until the end of the second month.