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What is Maximum number of sodium channels per square micrometer, is present in: March 2009 and explain in detail?
Ans. D: Nodes of RanvierIn a myelinated neuron, number of sodium channels per square micrometer is:Cell body-50-75Axon terminal-20-75Surface of myelin-Less than 25Nodes of Ranvier-2000-12,000In the initial segment:350-500In unmyelinated neurons, number is about 110