PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This insulating material forms a layer, around the axon of a neuron. It enables electrical signals to travel down the axon at higher speeds.
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neuron
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myelin sheath
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dendrite
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neurotransmitter
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Explanation:
Detailed explanation-1: -Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells.
Detailed explanation-2: -Myelin is a coating of compacted cell membrane that is wrapped around the axon by non-neuronal cells called oligodendrocytes.
Detailed explanation-3: -Myelin is a lipid-rich material that surrounds nerve cell axons (the nervous system’s “wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon.
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