PSY100Y5 Chapter Notes - Chapter 3: Peripheral Nervous System, Axon Terminal, Neuroglia
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PSY100Y5 Full Course Notes
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Communication in the nervous system: nervous tissue: the basic hardware, 2 major categories for cells in nervous system. Chanaps: parts of a neuron, glia cells found throughout the nervous system that provide structural support and insulations for neurons. Help maintain the chemical environment of the neurons: nuerons- the individual cells in the nervous sytem that receive, integrate, and transmit info. Insulating material, from glial cells, that encases some neurons. Speeds up transmissiono of info: multiple scleroris due to deterioration of myelin sheath. Terminal buttons small knobs that secrete chemicals called neurotransmitters. At end of axons in clusters: synapse point at which neurons connect. Inhibitory psp negative voltage change that decreases the likelihood: reuptake process in which neurotransmitters are sponged up from the synaptic cleft by the presynaptic membrane . Integrating signals: a balancing act: state of a neuron is the weighted balance between excitatory and inhibitory psp"s, neurotransmitters and behavior.