PSYC 1100 Chapter Notes - Chapter 11: Prenatal Development, Chromosome, Fetus

• School: Douglas College
• Department: Psychology
• Course: PSYC 1100
• Professor: Roger Tweed

Document Summary

Development: development includes both dramatic transformations and striking consistencies in the way we look, think, feel, and act. Developmental psychology: the study of continuity and change across the life span in the last century developmental psychologists have discovered some truly amazing things about metamorphosis. 11. 1 prenatality: a womb with a view: the prenatal stage of development ends with birth and begins 9 months earlier when about. If the egg is fertilized by a sperm whose 23rd chromosome is y, then the zygote is a male (also called an xy) It also has the beginnings of female reproductive organs, and if it is a male embryo, it begins to produce a hormone called testosterone which masculinizes those organs: at about 9 weeks it is called a fetus. Fetal stage: a period that lasts from about the 9th week after conception until birth: the fetus has a skeleton and muscles that make it capable of movement.