PSYC 1010 Chapter 11: Chapter 11 Psyc Notes.docx

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Myriam Mongrain

Document Summary

Chapter 11 human development across the life span. Development is the sequence of age related changes that occur as a person progresses from conception to death. The prenatal period extends from conception to birth, usually encompassing nine months of pregnancy: in the final weeks before birth, the frenzied pace of prenatal development slows down. Prenatal period is divided into 3 phases: the germinal stage is the first phase of prenatal development, encompassing the first two weeks after conception. Begins when a zygote is created thru fertilization. A zygote is a one-celled organism formed by the union of a sperm and an egg, lasting from conception to 2 weeks. Within 36 hours, zygote becomes a mass of cells that migrate to the fallopian tube to the uterine cavity until the 7th day where the mass begins to implant itself in the uterine wall. Vital organs & bodily systems begin to form. Now called an embryo, 2. 5 cm long from.