Kinesiology 3222A/B Lecture Notes - Lecture 1: Microglia, Substantia Nigra, Sciatic Nerve
28 Mar 2017
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Brain - found in cranial cavity o. Spinal cord/vertebral column - found in spinal canal o. Connects receptors and sensations of the world to the nervous system. Synapses - allow one neuron to functionally connect to another to carry out a response. Glia: do not participate directly in synaptic interactions o o. Insulation: more numerous than neurons (3:1) o. Essential played in how the nervous system functions. Dendrites - receptive field: dendritic tree/branches, inputs move toward the cell body o o o. Primary target for synaptic input from other neurons. Cell body - processing/manufacturing plant o o. Formulates some kind of response (happens at axon hillock) Initial segment: where action potential will begin o. Supporting structure to transmit ap = myelin (white covering, helps function quicker) Axon terminal: distal termination of an axon, accumulation of neurotransmitters o. Could be a muscle, a gland, effector organ: also referred to as axon bouton, ultimately creates a synapse with that other organ o.
