Fill in the Blanks The structure of a neuronOnline version Helping to teach the features in a neuron and their functions by Jesse Eisenhower 1 sheath impulse transmission nerve contains myelin Gaps genetic neuron protects body neuron material impulses neurons body synapse cell cell Neurons vary in size but all share the same basic structure : Cell body ( or soma ) - includes a nucleus which the of the cell Dendrites - branch - like structures that protude from the cell body . These carry from neighbouring towards the . Axon - carries the electrical away from the down the length of the . It is covered by a fatty layer of that the axon . in the axon called nodes of ranvier speed up the of the impulse . Terminal buttons at the end of the axon communicate with the next in the chain across a gap called the .
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