PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one of the following best describes the waxy-appearing material called myelin:
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An outer membrane of the neuroglial cell
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A mass of white lipid material that surrounds the dendrites of a neuron
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A mass of white lipid material that insulates an axon of a neuron
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None of the above
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Explanation:
Detailed explanation-1: -A myelin sheath is a sleeve (sheath) that’s wrapped around each nerve cell (neurons). It’s a protective layer of fat (lipids) and protein that coats the main “body” section of a neuron called the axon.
Detailed explanation-2: -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.
There is 1 question to complete.