Final answer:
Myelin acts as an insulator to minimize dissipation of the electrical signal as it travels down the axon.
Step-by-step explanation:
Myelin acts as an insulator to minimize dissipation of the electrical signal as it travels down the axon. It helps to speed up the conduction of nerve impulses along the axon by preventing the loss of electrical charge. This is especially important in neurons with long axons, such as those in the peripheral nervous system.
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