PY 352 Lecture Notes - Lecture 4: Cerebral Cortex, Neuroglia, Lanugo

• School: University of Alabama
• Department: Psychology
• Course: PY 352
• Professor: Carolyn Gibson

Document Summary

Periods of prenatal development: zygote 2weeks: fertilization, implantation and start of placenta, embryo 6 weeks: arms, legs, face, organs, muscle all develop, fetus 30 weeks: growth and finishing. Period of the embryo: last half of first month, ectoderm, mesoderm, endoderm, neurons, second month, rapid growth: eyes, ears, nose, jaws, neck, buds become arms, legs, fingers, toes, responds to touch. Cephalocaudal development: prenatal development from the 4th week on is cephalocaudal, areas near the head develop earlier than those farther away.