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Multiple Choice
Which of the following neuroglial cells is responsible for forming the myelin sheath in the central nervous system?
A
Astrocytes
B
Oligodendrocytes
C
Schwann cells
D
Microglia
Verified step by step guidance
1
Understand the role of neuroglial cells: Neuroglial cells are specialized cells in the nervous system that support and protect neurons. Different types of neuroglial cells have distinct functions.
Learn about the myelin sheath: The myelin sheath is a fatty layer that wraps around axons, insulating them and speeding up the transmission of electrical signals in the nervous system.
Differentiate between the central and peripheral nervous systems: The central nervous system (CNS) includes the brain and spinal cord, while the peripheral nervous system (PNS) includes nerves outside the CNS.
Identify the cells responsible for forming the myelin sheath: In the CNS, oligodendrocytes are responsible for forming the myelin sheath. In the PNS, Schwann cells perform this function.
Review the other options: Astrocytes provide structural and metabolic support to neurons, and microglia act as immune cells in the CNS. Neither of these forms the myelin sheath.