The destruction of the myelin sheath results in movement difficulties for sufferers of multiple sclerosis because _____.

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The myelin sheath plays a critical role in the transmission of neural impulses by greatly increasing the speed at which the impulses travel along the axon. When the myelin sheath deteriorates, the transmission of neural impulses is greatly slowed, resulting in movement difficulties for individuals with multiple sclerosis. Unmyelinated axons do have erratic neural transmission but that is not the primary reason for movement difficulties in individuals with multiple sclerosis. Cell bodies can respond to dendritic messages even when axons are unmyelinated. Moreover, while the all-or-nothing event is stopped when axons are unmyelinated, it does not directly result in movement difficulties.

The Destruction of the Myelin Sheath Results in Movement Difficulties