PSYC 2000 Lecture Notes - Lecture 2: Selective Serotonin Reuptake Inhibitor, Somatic Nervous System, Peripheral Nervous System
Document Summary
Network of specialized cells that carry information throughout the body: nervous system, neuroscience. Examines the relationship between the nervous system and behavior/learning. Neuron: basic cell that sends and receives messages throughout the body, myelin sheaths are insulated with myelin. Myelin insulates then spikes when there is no myelin. [learning catalytic]: myelin - fatty substance that forms a protective coating around the axon of a neuron. [learning catalytic]: name the parts of a neuron. Glia: the backup dancers of the main performers (neurons) Support structure (the skeleton holds everything in place) [learning catalytic]: glia make up 90% of the cells in the brain, whereas neurons make up only 10% of the cells in the brain. Nerve impulses: resting potential, action potential. Once it gets to -50 mv an action potential happens: -50 +50. Get rid of k+ and stop na+ from getting in.
