Biology for IGCSE & O level - Coordination And Response (Section 9 - No. 10)
What is the primary function of the myelin sheath in a neuron?
To increase the speed of nerve impulse transmission
To provide nutrients to the neuron
To protect the neuron from physical damage
To generate electrical impulses
Explanation
The myelin sheath acts as an insulator, allowing nerve impulses to travel much faster.
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