Question

The myelin sheath of the neuron is made of which type of cells?

• A. Schwann cells.
• B. Astrocytes.
• C. Oligodendrocytes.
• D. Microglia.

Hint:

Schwann cells form the myelin sheath in the peripheral nervous system, while oligodendrocytes form it in the central nervous system.

Answer 1

The Correct Option is A

Step 1: Understanding myelin sheath formation.
The myelin sheath is a protective covering that surrounds axons of many neurons. It increases the speed of nerve signal transmission. Step 2: Type of cells involved.
In the peripheral nervous system (PNS), the myelin sheath is formed by Schwann cells. In the central nervous system (CNS), oligodendrocytes perform this function. Step 3: Conclusion.
Thus, in the PNS, the myelin sheath is made of Schwann cells.