myelinated

Thân thiện

A neuron's myelinated axon transmits signals quickly.

Definition

1. 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.

Học thuật

Adjective

1. (of neurons) covered with a layer of myelin

Từ đồng nghĩa

• medullated