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Multiple Choice
Which neuroglial cells insulate axons in the central nervous system?
A
Astrocytes
B
Oligodendrocytes
C
Schwann cells
D
Microglia
Verified step by step guidance
1
Begin by understanding the role of neuroglial cells in the nervous system. Neuroglial cells, or glia, are non-neuronal cells that provide support and protection for neurons.
Identify the different types of neuroglial cells mentioned in the problem: Astrocytes, Oligodendrocytes, Schwann cells, and Microglia.
Recognize that the central nervous system (CNS) consists of the brain and spinal cord, while the peripheral nervous system (PNS) includes all other neural elements.
Understand that Oligodendrocytes are the type of neuroglial cells responsible for insulating axons in the CNS by forming the myelin sheath, which increases the speed of electrical impulses.
Differentiate between Oligodendrocytes and Schwann cells, noting that Schwann cells perform a similar function in the PNS, insulating axons by forming the myelin sheath outside the CNS.