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chapter 12

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
The somatic nervous system controls what?   show
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The effectors of the autonomic nervous system includes:   show
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which two branches of the nervous system commonly work as anatgonists to each other?   show
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clusters of rough endoplasmic reticulum and free ribosomes within the cell body of a neuron appear dark when stained. These are called:   show
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show collaterals  
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show unipolar  
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motor neurons and most interneurons are ___ neurons.   show
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show proprioceptors  
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show presynatic  
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___ are cells that produce, circulate, and monitor cerebrospinal fluid (CSF)   show
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show microglia  
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show oligodendrocytes  
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___ are the most numerous of the neuroglial cells. they form the blood-brain barrier.   show
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___ are neuroglial cells that surround neuron cell bodies in ganglia of the perpheral nervous system. they oxygen, carbon dioxide, and nutrient levels for the associated neurons.   show
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Nonmyelinated regions along a myeliated axon are called:   show
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show a graded potential  
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In the generation of an action potential, voltage-regulated sodium gates open at ___ millivolts and a tremendous amount of sodium ions diffuse into the cell.   show
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Sodium ions spread along the cytoplasm at the surface of an axolemma by:   show
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At ___ millivolts, the voltage-regulated sodium gates close and voltage-regulated potassium gates open.   show
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when the voltage-regulated gates open, potassium floods outward and may create a moment of ____.   show
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show sodium-potassium pump  
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show absolute refractory period  
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Along myelinated axons, action potentials travel rapidly by ___.   show
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show type A  
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the neuromuscular junction is an example of a ___.   show
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show dopamine  
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show serotonin  
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