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Neurilemma Sheath vs. Myelin Sheath — What's the Difference?

By Tayyaba Rehman — Published on December 1, 2023
Neurilemma Sheath is the outermost layer of Schwann cells surrounding a nerve fiber. Myelin Sheath is an insulating layer formed by glial cells around nerve fibers.
Neurilemma Sheath vs. Myelin Sheath — What's the Difference?

Difference Between Neurilemma Sheath and Myelin Sheath

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Key Differences

Neurilemma Sheath is the outer layer of Schwann cells on peripheral nerves. Myelin Sheath, on the other hand, is made by oligodendrocytes in the CNS and Schwann cells in the PNS.
Tayyaba Rehman
Dec 01, 2023
The Neurilemma Sheath plays a role in nerve regeneration. The Myelin Sheath primarily provides insulation and increases nerve impulse speed.
Tayyaba Rehman
Dec 01, 2023
Neurilemma Sheath is present in all peripheral nerve fibers. Myelin Sheath is found in many, but not all, nerve fibers, both in the central and peripheral nervous systems.
Tayyaba Rehman
Dec 01, 2023
Injury to a nerve affects the Neurilemma Sheath's ability to aid regeneration. Damage to the Myelin Sheath can severely disrupt nerve signal transmission.
Tayyaba Rehman
Dec 01, 2023
The Neurilemma Sheath contains the nucleus of the Schwann cell. The Myelin Sheath is composed of compact layers of cell membrane but lacks a nucleus.
Tayyaba Rehman
Dec 01, 2023
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Comparison Chart

Composition

Outer layer of Schwann cells
Layers of glial cell membrane
Tayyaba Rehman
Dec 01, 2023

Function

Aids in nerve regeneration
Provides insulation, increases speed
Tayyaba Rehman
Dec 01, 2023

Presence

All peripheral nerve fibers
Many nerve fibers in CNS and PNS
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Dec 01, 2023

Role in Nerve Injury

Facilitates nerve healing
Disruption leads to signal transmission issues
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Dec 01, 2023

Cellular Structure

Contains nucleus of Schwann cell
Lacks nucleus, made of compact layers
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Dec 01, 2023

Compare with Definitions

Neurilemma Sheath

Schwann cell envelope around nerve fibers.
The Neurilemma Sheath facilitates communication in the nervous system.
Tayyaba Rehman
Oct 26, 2023

Myelin Sheath

Protective coating made by glial cells.
Damage to the Myelin Sheath can cause neurological disorders.
Tayyaba Rehman
Oct 26, 2023

Neurilemma Sheath

Essential component of the peripheral nervous system.
The Neurilemma Sheath surrounds and supports nerve fibers.
Tayyaba Rehman
Oct 26, 2023

Myelin Sheath

Insulating layer around nerve fibers.
The Myelin Sheath enhances the speed of nerve impulses.
Tayyaba Rehman
Oct 26, 2023

Neurilemma Sheath

Protective layer of Schwann cells on peripheral nerves.
The Neurilemma Sheath is crucial for peripheral nerve regeneration.
Tayyaba Rehman
Oct 26, 2023

Myelin Sheath

Structure increasing neural conductivity.
The Myelin Sheath is essential for efficient brain function.
Tayyaba Rehman
Oct 26, 2023

Neurilemma Sheath

Outermost layer surrounding a nerve fiber.
Injury to the Neurilemma Sheath can impact nerve repair.
Tayyaba Rehman
Oct 26, 2023

Myelin Sheath

Glial cell wrapping around neurons.
Myelin Sheath disruptions are linked to multiple sclerosis.
Tayyaba Rehman
Oct 26, 2023

Neurilemma Sheath

Schwann cell layer involved in nerve healing.
The Neurilemma Sheath’s presence aids in regrowth after nerve damage.
Tayyaba Rehman
Oct 26, 2023

Myelin Sheath

Cellular layer facilitating rapid signal transmission.
The Myelin Sheath ensures quick response in the nervous system.
Tayyaba Rehman
Oct 26, 2023

Common Curiosities

What is the Neurilemma Sheath?

It's the outermost layer of Schwann cells surrounding peripheral nerve fibers.
Tayyaba Rehman
Dec 01, 2023

Can damage to the Neurilemma Sheath affect nerve repair?

Yes, damage to it can impede the nerve's ability to regenerate.
Tayyaba Rehman
Dec 01, 2023

How do Neurilemma Sheath and Myelin Sheath differ in function?

The Neurilemma Sheath aids nerve regeneration; the Myelin Sheath provides insulation and increases impulse speed.
Tayyaba Rehman
Dec 01, 2023

Are both sheaths present in the central nervous system?

The Myelin Sheath is present in both the CNS and PNS, but the Neurilemma Sheath is only in the PNS.
Tayyaba Rehman
Dec 01, 2023

What is the Myelin Sheath?

It's an insulating layer formed by glial cells around nerve fibers.
Tayyaba Rehman
Dec 01, 2023

What happens if the Myelin Sheath is damaged?

It can disrupt nerve signal transmission, leading to neurological issues.
Tayyaba Rehman
Dec 01, 2023

Is the Neurilemma Sheath involved in nerve growth?

Yes, it plays a crucial role in nerve regeneration.
Tayyaba Rehman
Dec 01, 2023

What cells contribute to the formation of the Myelin Sheath?

Oligodendrocytes in the CNS and Schwann cells in the PNS form the Myelin Sheath.
Tayyaba Rehman
Dec 01, 2023

Are both sheaths important for the nervous system?

Yes, both play crucial roles in protecting and facilitating nerve function.
Tayyaba Rehman
Dec 01, 2023

What cells form the Neurilemma Sheath?

Schwann cells form the Neurilemma Sheath.
Tayyaba Rehman
Dec 01, 2023

Does the Neurilemma Sheath contain a nucleus?

Yes, it contains the nucleus of the Schwann cell.
Tayyaba Rehman
Dec 01, 2023

What role does the Myelin Sheath play in nerve function?

It insulates nerve fibers, enhancing the speed and efficiency of impulse transmission.
Tayyaba Rehman
Dec 01, 2023

Does the Myelin Sheath have a nucleus?

No, it's composed of compact layers of cell membrane without a nucleus.
Tayyaba Rehman
Dec 01, 2023

Can the Neurilemma Sheath be found in all nerve fibers?

It's present in all peripheral nerve fibers.
Tayyaba Rehman
Dec 01, 2023

Is the Myelin Sheath always present in nerve fibers?

It's present in many, but not all, nerve fibers in the CNS and PNS.
Tayyaba Rehman
Dec 01, 2023

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.

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