myelinated
Definition
- Adjective:
- (Of neurons) covered with a layer of myelin: Describes nerve cells (neurons) that are insulated by a fatty, white substance called myelin, which increases the speed of electrical signal transmission.
Usage Examples
- Adjective:
- The axons of motor neurons are typically myelinated.
- A myelinated nerve fiber conducts impulses much faster than an unmyelinated one.
- The disease causes damage to myelinated pathways in the brain.
Advanced Usage
- Technical/Medical Context: The term is almost exclusively used in scientific, medical, and biological contexts to describe the physical state of nerve fibers.
- The study focused on the regeneration of myelinated axons after injury.
Variants and Related Words
- Myelin (n): The fatty insulating sheath that surrounds the axons of many neurons.
- Myelin is essential for the proper functioning of the nervous system.
- Myelination (n): The process of forming a myelin sheath around a nerve fiber.
- The myelination of neural pathways continues into early adulthood.
- Unmyelinated (adj): (Of neurons) not covered with a myelin sheath.
- Unmyelinated fibers conduct nerve impulses more slowly.
Synonyms
- Medullated (adj): A less common synonym, also meaning covered with myelin. (Note: In modern terminology, "myelinated" is preferred.)
Antonyms
- Unmyelinated (adj): Not insulated with myelin.
Adjective
-
(of neurons) covered with a layer of myelin
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