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Multiple Choice
Which type of neuroglia produces the myelin sheath in the peripheral nervous system?
A
Microglia
B
Astrocytes
C
Schwann cells
D
Oligodendrocytes
Verified step by step guidance
1
Begin by understanding the role of neuroglia in the nervous system. Neuroglia, or glial cells, are non-neuronal cells that provide support and protection for neurons.
Recognize that the myelin sheath is a fatty layer that surrounds the axons of neurons, facilitating faster transmission of electrical signals.
Differentiate between the types of neuroglia based on their location and function. In the central nervous system (CNS), oligodendrocytes produce the myelin sheath, while in the peripheral nervous system (PNS), Schwann cells are responsible for this function.
Identify the key characteristics of Schwann cells. They are found in the PNS and wrap around axons to form the myelin sheath, which is crucial for efficient nerve signal transmission.
Conclude that Schwann cells are the type of neuroglia that produce the myelin sheath in the peripheral nervous system, distinguishing them from oligodendrocytes, which perform a similar function in the CNS.