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What does non myelinated fibers look like?
Non-myelinated fibers appear as thin, unmyelinated axons within bundles of nerve fibers. They lack the myelin sheath that surrounds some other nerve fibers, which gives them a more transparent or grayish appearance compared to myelinated fibers. Non-myelinated fibers are typically smaller in diameter and conduct nerve impulses more slowly than myelinated fibers.
What is non-myelinated nerve fiber?
Non-myelinated nerve fibers are nerve fibers that lack a protective myelin sheath, a fatty covering that helps speed up the transmission of nerve impulses. These fibers are slower at conducting nerve signals compared to myelinated fibers and are found in structures like pain receptors and autonomic nervous system fibers.
The funiculi all contain what?
The funiculi contain ascending and descending nerve fibers that transmit sensory and motor information between different levels of the central nervous system.
Difference between optic tract and optic nerve?
Bundles of neuron processes are called tracts in the cns and nerves in the pns
What substance slows the message passing from the brain to the rest of the body?
Unmyelinated nerve fibers are slower than myelinated nerve fibers. The fibers covered by myelin are much faster.
