| 单词 | myelin sheath |
| 释义 | myelin sheathnoun Anatomy.a wrapping of myelin around certain nerve axons, serving as an electrical insulator that speeds nerve impulses to muscles and other effectors. Origin of myelin sheathFirst recorded in 1895–1900 Words nearby myelin sheathmyelin, myelinated, myelinated fiber, myelination, myelinolysis, myelin sheath, myelitis, myelo-, myeloblast, myeloblastemia, myeloblastic leukemia Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Medical definitions for myelin sheathmyelin sheath n.The insulating envelope of myelin that surrounds the core of a nerve fiber or axon and that facilitates the transmission of nerve impulses, formed from the cell membrane of the Schwann cell in the peripheral nervous system and from oligodendroglia cells.medullary sheath The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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