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Nerve Cells - Micro

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Question
Answer
What are the functions of Synapses?   allow for Enhancement or Reduction in Nerve-to-Nerve COMMUNICATION - gating passage of info  
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Where are Synapses located?   FUNCTIONAL (not physical) connections between 2 Neurons  
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Where are Neuromuscular Junctions located?   FUNCTIONAL connections between Motor Nerves and Muscle Cells  
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What is the function of Muscular Junctions?   CONTRACTION of Skeletal Muscle  
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What would be the result of damage to a Neuromuscular Junction?   Paralysis  
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What are the Nerve Coverings called?   Neuroglia  
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What are Neuroglia?   coiling Cell Membranes forming Myelin  
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What is the function of Neuroglia?   providing electrical INSULATION between adjacent Axons  
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What is the function of Schwann cells and where are they located?   improves impulse SPEED along Axon - around PERIPHERAL Nerves  
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What is the function of Oligodendrocytes?   improves impulse SPEED along Axon - around CENTRAL Nerves  
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What are the Nodes of Ranvier?   GAPS between Myelin Cells  
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What is the significance of the Nodes of Ranvier?   only are of Axon having Na+ and K+ Channels  
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What are Nerve Trunks?   Cable-like groupings of SENSORY and MOTOR fibers  
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Where are Nerve Trunks located?   PERIPHERAL bundles of Nerves isolated by Connective Tissue - ie. Perineurium, Epineurium, Endoneurium  
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Created by: Kristel
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