Biology for IGCSE & O level - Coordination And Response (Section 4 - No. 45)
Which of the following is NOT a function of the myelin sheath?
To insulate the axon
To speed up the transmission of nerve impulses
To generate action potentials
To protect the axon
Explanation
The myelin sheath does not generate action potentials. These are generated by the neuron's cell membrane.
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