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Question

Where can you find nodes of Ranvier? 
  1. on an axon 
  2. in the cell body 
  3. both a and c
  4. on a dendrite 


Solution

The correct option is A on an axon 
A neuron has three main parts dendrites, an axon, and a cell body or soma. Some neurons are myelinated that is the axon of the neuron is covered by a myelin sheath. Nodes of Ranvier are microscopic gaps found within myelinated axons. Their function is to speed up propagation of action potentials along the axon. 

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