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10 Cards in this Set
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- Back
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As part of the peripheral nervous system, what does the somatic nerves control?
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The somatic nerves control the skeletal muscle bones and skin.
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Neurons can be classified into three different types. What are they?
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Sensory neurons, motor neurons, and interneurons.
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Explain the process of reception.
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Reception refers to dendrites being stimulated by an environment factor and starting an impulse.
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A single neuron or muscle fiber has a minimum strength of stimulation called . . . ?
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Threshold level
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PNS has two autonomic branches. What are they?
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Parasympathetic and Sympathetic
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"________" is the minimum stimulation to create an action potential.
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Threshold potential
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What part of the neuron is an extension of cytoplasm that carries nerve impulses away from the dendrites?
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The axon.
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What is the refractory period?
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A neuron that conducts an impulse and goes through repolarization.
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What two early technologies were discovered to record and measure electrical activity in the heart?
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ECG or electrocardiogram
EEG or electoencephalograph |
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What is the charge of an unstimulated neuron?
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-70 mV
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