PSYC 2110 Chapter Notes - Chapter 6: Neural Tube, Neural Plate, Cerebral Cortex
28 Nov 2016
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Between 10 and 20 billion neurons in the adult cortex: neuron a nerve cell, consisting of a cell body, axon and dendrities. Assembly of brain: genome is the blueprint for the brain, neurons and glial cells are the bricks and mortar, etc. Glial cells a cell that wraps itself around the axon: axons, dendrites and synaptic connections are the wiring for electricity and telephone, etc, in terms of development, need to know when, where, and what develops. In terms of differentiation of the different areas of the brain, this occurs in the fetus: also, early in the fetus, the brain is fairly smooth, but by birth much of the convolutions and invaginations have occurred. Cell migration (stage 2: passive cell displacement more common (outside-in neural pattern, new cells push old cells outward (outter layer of brain, short distances, structures created using this is the thalamus.
