PSY-P 102 Study Guide - Quiz Guide: Radial Glial Cell, Fetal Alcohol Spectrum Disorder, Neural Tube
21 Feb 2017
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Psy 102 exam 1: unit exam review chapters 9 and 10. A gene is a unit of dna code for making a particular protein molecule, they direct the manufacture of proteins(used in all body functions) Role in fetal development : at fertilization you inherit 23 chromosomes from each parent your unique genetic makeup(1 gene from each parent) All humans have same genes but they come in different forms(alleles) After 3 weeks after conception, fluid filled neural tube forms from neural cells lined with stem cells. *all occurring simultaneously, but sequential for a given neuron: mitosis/proliferation: occurs in ventricular zone, 500k/min, fixes daughter cells after, migration: radial glial cells act as guide wires for migration neurons, differentiation is occurring as neurons migrate(move in herds) Growth cones crawl forward as they elaborate the axons training behind them. * infancy: branching of dendrites, myelination, childhood: increase in synaptic connections, pruning of unused neural connections, rapid growth in frontal lobe areas.
