Question

The neurons in the brain are myelinated by

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

Answer 1

Answer: (C)

Oligodendrocytes

• Oligodendrocytes or oligodendroglia, are a type of neuroglia whose main functions are to provide support and insulation to axons in the central nervous system of some vertebrates, equivalent to the function performed by Schwann cells in the peripheral nervous system.
• Oligodendrocytes are found only in the central nervous system, which comprises the brain and spinal cord.
• Each oligodendrocyte forms one segment of myelin for several adjacent axons. Hence, The neurons in the brain are myelinated by Oligodendrocytes.

So, the correct answer is 'Oligodendrocytes'.