What are the differences observed between the myelinated and non-myelinated nerve fibers?

Question

What are the differences observed between the myelinated and non-myelinated nerve fibers?

Answer 1

speed of impulse is more in mylinated nerve fibres

Answer 2

myelinated fibers have myelin sheath and node of Ranvier. propagation of nerve impulse is faster in these

Answer 3

well..... for one myelinated neurons are much quicker at conducting an impulse since the charge is insulated within the axon by this sheeth of glial cells.  where as non-myelinated nerve fibers may take longer to send messages and be "leakier"   since their conductance is not insulated.  

You can find myelinated neurons mostly in the PNS (peripheral nervous system)    which is any nervousal tissue outside the brain and spinal chord (CNS).   PNS neurons are that of motor and sensory and must transduce impulses/messages very quickly along great distances (such as the sciatic neuron which can travel about 2-3 feet) in order to allow for a quick feedback response.   The neurons of the brain on the other hand, although works just as fast, do not travel nearly as great of distances and are surrounded purely by other tranducing nervous tissue  and glial cells  which may be a form of insulation in an open space.