NERVOUS
NEURONS TYPES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which neuron structure wraps tightly around the axon in layers composed of myelin?
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dendrites
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axon
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schwann cells
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cell body
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Explanation:
Detailed explanation-1: -Schwann cells, also called neurolemmocytes, have two structural types. They may form a thick myelin sheath, or an indented plasma membrane that folds around peripheral axons in the PNS. Where a Schwann cell covers an axon, the outer cell surface is called the neurilemma. This shields the axon from interstitial fluids.
Detailed explanation-2: -Glial cells are the key element for supporting the messages neurons send and receive all over the body. Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon.
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