PSYC 100 Lecture Notes - Lecture 14: Sudden Infant Death Syndrome, Synaptic Plasticity, Congenital Heart Defect

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jill L Atkinson

Document Summary

U5 l14: developmental psychology: physical and lifespan development. Describe the stages of human development in the prenatal period. A single sperm from a male fuses with an ovum from a female. Will last until the developing cells have attached to the uterine wall, about 8-10 days after conception. The product from the merging of a male and female gamete is a diploid zygote. The zygotic cell divides multiple times, creating numerous identical copies that hold together in a spherical shape. Divisions occur through a process known as cleavage [the division of cells in the early embryo to form blastomeres], which occurs 24 hours after conceptions. After a few instances of cleavage, the resulting spherical mass of cells is known as a morula. Cells that have the same dna as every other cell that have not yet undergone any epigenetic modification.