Myelin sheath in CNS is produced by: (A) Oligodendrocyte, (B) Schwann cell, (C) Microglia, (D) Macroglia
Answer is A. Oligodendrocytes and Schwann cells are involved in myelin formation around axons in the CNS and peripheral nervous system respectively. Ref: Ganong&;s review of medical physiology; 23rd edition; pg: 80.