| 释义 |
neurilemma
noun[ C or U ]
anatomy specialized(alsoneurolemma)uk /ˌnjʊə.rɪˈlem.ə/ us /ˌnʊr.əˈlem.ə/
the thin outer covering of a nerve fibre:
Outside a nerve we find a covering, the neurilemma.
The neurolemma, or primitive sheath, has the appearance of a delicate membrane.
The myelin sheath is under the neurilemma, which is like another sheath.
Components of the peripheral nerve include the cell body, axons and dendrites, the cell membrane (neurolemma) and, in myelinated nerves, the Schwann cell.
The axis-cylinder is the essential part of the nerve fibre, and is always present; the medullary sheath and the neurilemma are occasionally absent.
SMART Vocabulary: related words and phrases
The brain & nervous system
abducens nerve
abducent nerve
accessory nerve
alexithymia
allism
glossopharyngeal nerve
grey matter
hemispheric
hemispherical
hindbrain
neurogenic
neurogenically
neuroglia
neuroglial
neurohormonal
reticular formation
rhinencephalon
rhombencephalon
right brain
right-brained
Related word
neurilemmal
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