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NEETZoologyNeural Control and Coordination

Read the following statements and choose the following option: 1. Unmyelinated nerve fibres are enclosed by schwann cells 2. The gaps between two myelin sheaths are called nodes of Ranvier 3. The myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. 4. Myelinated nerve fibres are found in spinal and cranial nerves.

Options

  1. AOnly 1 is correct
  2. BAll are correct
  3. COnly 2 is correct
  4. DOnly 1 and 3 are correct

Correct answer

B. All are correct

Step-by-step solution

Unmyelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath around the axon. The gaps between two adjacent myelin sheaths are called nodes of Ranvier.

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