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Which of the following statements is correct for ‘nodes of Ranvier’ of nerve?

1. Neurilemma is discontinuous
2. Myelin sheath is discontinuous
3. Both neurilemma and myelin sheath are discontinuous
4. Covered by myelin sheath

Correct answer: Both neurilemma and myelin sheath are discontinuous

Solution

Nodes of Ranvier are gaps in the myelin sheath where the action potential jumps from node to node.

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