A fatty substance that is wrapped around the shaft of axons in the nervous system and whose function is to insulate neurons and speed up the neural impulse is called a

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The myelin sheath is a fatty substance that wraps around the axon of neurons, serving to insulate neurons and speed up neural impulses. Synaptic vesicles are small sacs that store and release neurotransmitters, dendrites are branching extensions of neurons that receive information from other neurons, and glial cells support and protect neurons.

A Fatty Substance That Is Wrapped Around the Shaft of Axons