PSYC 050 Lecture Notes - Lecture 7: Myelin, Efferent Nerve Fiber, Axon Terminal

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3 Feb 2016
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Focuses heavily on nervous system and neurons. How the brain produces mental processes and behavior. The brain coordinates w/ the two communication systems: nervous and endocrine. Neurons (nerve cell) - cell specialized to receive and transmit info to other cell in the body. Nervous system: makes up the nervous system, network of neurons that extends throughout the body. Endocrine system: group of glands that operates together and in parallel w/ the nervous system. The structure of a neuron (in order) **: dendrites. Threshold: the level at which an action potential will occur. Ex. b/w 1-10, the worst news is 1, best news is. 10; anything over a 5 will start an action potential and will be the strength each time: axon. Long projection out of the cell body. Sends an electrical current to end of axon. Covered by the myelin sheath: axon terminal. Carry messages from sense receptors to cns. Carry messages from cns toward muscles and.

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