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Myelin Sheath Composition

Meaning

Myelin sheath composition refers to the unique, highly specialized molecular makeup of the multi-layered lipid and protein structure that insulates the axons of many neurons, allowing for rapid and efficient transmission of electrical impulses. This composition is characterized by an exceptionally high lipid-to-protein ratio, with cholesterol, galactolipids (like galactocerebroside), and sphingomyelin being the dominant lipid species. The integrity of this composition is crucial for nervous system function and is a major determinant of neurological health.