PSYC 100 Lecture Notes - Lecture 14: Neural Tube, Neurulation, Prenatal Development

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Describe the stages of human development in the prenatal period: germinal period: the first two weeks after the sperm and egg unite, will last until the developing cells have attached to the uterine wall. Cleavage: the diffusion of cells in the early embryo from blastomeres. Morula: a solid mass of blastomeres resulting from a number of cleavages of a zygote occurs during the germinal period (in the fallopian tube and then goes into the uterus which fills with fluid) Gamete: a mature male or female cell used for reproduction, they are the only haploid cells in your body. Haploid: having one set of chromosomes instead of the usual complement of two. Diploid: a cell containing both sets of chromosomes. During this stage the brain undergoes neural tube differentiation, whereby the basic spinal cord (neural tube) differentiates into different parts of the brain. Innermost later of tissue, eventually develops into the digestive system, urinary tract, lungs.