PSYC 2500H Chapter Notes - Chapter 4: Diethylstilbestrol, Rubella, Teratology

• School: Trent University
• Department: Psychology
• Course: PSYC 2500H
• Professor: Brenda Smith- Chant

Document Summary

Prenatal development: development that occurs between the moment of concepion and the beginning of the birth process. Prenatal development is divided into three main phases: Period of the zygote/ germinal phase: irst phase, lasing from concepion unil the developing organism becomes irmly atached to the wall of the uterus (around 2 weeks) Blastocyst: name given to the ball of cells formed when the ferilized egg irst begins to divide. Embryo: name given to the prenatal organism from the 3rd-8th week ater concepion. Implantaion: the burrowing of the blastocyst into the lining of the uterus. Amnion: a wateright membrane that surrounds the developing embryo, serving to regulate its temperature and cushion against injuries. Chorion: a membrane that becomes atached to the uterine issue to gather nourishment for the embryo. Placenta: an organ formed from the lining of the uterine and the chorian, provides for the respiraion and nourishment of the unborn child and the eliminaion of metabolic wastes.