PSYC 2410 Study Guide - Prenatal Development, Fusiform Face Area, Fasciculation

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Neuroscience chapter 9: development of the nervous system. The brain is a plastic (changeable) living organ that continuously changes in response to its genetic programs and environment. To start, there is a zygote (a single cell forms by the combination of an ovum and a sperm. Cells must establish appropriate functional relations with other cells: cells accomplish these things in 5 phases (induction of the neural plate, neural proliferation, migration and aggregation, axon growth and synapse formation, and neuron death and synapse rearrangement) 3rd stage migration and aggregation: migration: Once cells have been created through cell division in the ventricular zone, they migrate to the appropriate target region. Cells are still lacking the processes that characterize mature neurons at this stage. Two major factors govern migration: time and location (subtypes of neurons arise at a precise time and then migrate to their destinations) Cell migration can be of two kinds.

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