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Solution


Q.

Myelin sheath is produced by                   [2017]
1 astrocytes and Schwann cells  
2 oligodendrocytes and osteoclasts  
3 osteoclasts and astrocytes  
4 Schwann cells and oligodendrocytes  

Ans.

(4)

Schwann cells and oligodendrocytes form myelin sheath around the axon. Myelin sheath serves as an insulating layer, preventing loss of energy of the nerve impulse during its passage along the fibre.