PSYC 100 Lecture Notes - Lecture 1: Agonist, Morphine, Acetylcholine

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PSYC 100 Full Course Notes
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PSYC 100 Full Course Notes
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Neuron system: central nervous system (cns): composed of two kinds of cells---neurons and glia. Spinal cord: communicates with all the sensory organs: peripheral nervous system: includes spinal nerves and cranial nerves. Motor or efferent: automatic nervous system: component of pns that receives info from the heart and other organs. Homeostasis: the tendency of an organism to regulate internal conditions by a system of feedback control, so as to optimize health and functioning. Glia: supporting cells, serve supportive and protective of neurons: neuron: (takes info in from dendrites and cell body; send info out through axon terminal) Cell body: contains structures that maintain cell health and metabolism. Axon: transmit info one neuron to the next [nerve fibre that carries messages away from the cell body toward the axon terminal] Myelin sheath: insulate to make impulse travel along the axon faster. Axon terminal / synapse terminal: send info across the synapse. Synapse: the gap between two neurons: sensory/motor neuron.

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