- A Schwann cells
- B Adipocytes
- C Cartilage cells
- D Bone marrow cells
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Answer:
A
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The myelin sheath is formed around the axon of a nerve fibre by Schwann cells. These cells wrap themselves around the axon multiple times, creating the myelin sheath. This sheath provides insulation to the axon and speeds up the process of nerve impulse transmission. The gaps between adjacent myelin sheaths are called Nodes of Ranvier. Schwann cells are found in the peripheral nervous system and are also responsible for the regeneration of damaged nerve fibres.
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