PSYC 2200H Lecture Notes - Lecture 3: Speech-Language Pathology, Guanine, Angioplasty
20 Mar 2017
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What are the units of nervous system functions: cells of the nervous system. Internal structure of a cell: genes, cells, and behaviour. Neurons and behaviour: most behaviours are produced by groups of hundreds or thousands of neurons, neurons continuously change their shape, grow and shrink, most of your neurons are with you for life and are never replaces. Idea of a continuous mass of fused nerve cells. Neurons: gather information from other neurons, transmits information to cell body, number of dendrites vary some will have dozens some will have only a few (branches of the tree) Cell body or soma: core region: contains the nucleus. Integrates information from dendrites and sends relevant information down the axon. Axon: carries information to be passed on to other cells away from cell body, axoplasmic transport can move proteins and other molecules up and down the axon.
