APCh.2NeuroscienceVocab - AP Psychology Ch. 2 Neuroscience...

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AP Psychology Ch. 2 Neuroscience and Behavior a branch of psychology concerned with the links between biology and behavior biological psychology a nerve cell neuron the basic building block of the nervous system neuron the bushy, branching extensions of a neuron dendrite receives messages and conducts impulses toward the cell body dendrite the extension of a neuron ending in branching terminal fibers axon messages are carried through this to other neurons or muscles or glands axon a layer of fatty tissue segmentally encasing the fibers of many neurons myelin sheath enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next myelin sheath a neural impulse action potential a brief electrical charge that travels down an axon action potential is generated by the movement of positively charged atoms in and out of channels in the axon's membrane action potential the level of stimulation required to trigger a neural impulse threshold the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron synapse also called synaptic gap or cleft synapse chemical messengers that traverse the synaptic gaps between neurons neurotransmitters when released by the sending neuron, this will travel across the synapse and bind to receptor sites on the receiving neuron neurotransmitters influences whether the receiving neuron will generate a neural impulse neurotransmitters the body's speedy, electrochemical communication network nervous system consists of all the nerve cells of the peripheral and central nervous systems nervous system the brain and spinal cord central nervous system (CNS) the sensory and motor neurons that connect the central nervous system to the rest of the body peripheral nervous system (PNS) neural "cables" containing many axons nerves bundled axons, which are part of the peripheral nervous system nerves connect the central nervous system with muscles, glands, and sense organs nerves neurons that carry incoming information from the sense receptors to the central nervous system sensory neurons
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This note was uploaded on 04/21/2011 for the course PSYCHOLOGY 413 taught by Professor Moorhouse during the Winter '10 term at Grand Valley State University.

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APCh.2NeuroscienceVocab - AP Psychology Ch. 2 Neuroscience...

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