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Study Guide

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show Small, brief, local changes in membrane potential that act as short distance signals. The current produced dissipates w/ distance  
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The term Central Nervous System refers to the   show
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____ is a disease that gradually destroys the myelin sheths of neurons in the CNS, particularly in young adults   show
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show cranial and spinal nerves  
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show One neuron stmulates the next in sequence, producing specific, predictable responses, as in spinal reflexes.  
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show sensory neurons - conduct impulses toward CNSmotor neurons - conduct away from CNSintern neurons (association) - lie between sensory and motor neurons in the neural pathways.  
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action potential   show
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show loss of a state of polarity; loss or reduction of negative membrane potential.  
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show period following stimulation during which no additional action potential can be evoked  
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relative refractory period   show
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show movement of the membrane potential to the initial resting (polarized) state.  
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norepinephrine   show
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show They have extreme longevity, they are amitotic(control every function of the body),high metabolic rate and require continuous and abdunant supplies of oxygen and glucose.  
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Ependymal celss function to   show
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An impulse from one nerve cell is communicated to another nerbe cell via the   show
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the sheath of Schwann is also called the   show
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show axon  
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show ganglia  
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a neuron that has as its rimary function the job of concerning other neurons is called an   show
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receptive region   show
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show a specific area that when stimulated by touch,pain,or pressure excites an attack of neurologic  
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show a circular circuit that returns a signal to its source  
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show signs from many neurons are sent on to just a few  
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show signs from one neuron sent out to many others  
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show short-chain polypeptide that functions as a neurotransmitter.  
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A second nerve impulse cannot be generated until   show
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show lower  
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That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles in the ______nervous system   show
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A gap between Schwann cells in the peripheral system is call a   show
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The synapse more common in embryonic nervous tissue than in adults is the   show
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show spatial summation  
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show "language" of the nervous system; each neuron communicates with others to process and send messages to the rest of the body.  
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What symptoms would a nurse focus on in his or her care of a patient with multiple sclerosis?   show
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