NEET PG DENTAL EXAM

EMBRYOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Insulating axon fibers which increase rate of neural impulse transmisison
A
Dendrites
B
Cell Body
C
Myelin Sheath
D
None of the above
Explanation: 

Detailed explanation-1: -Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon. This myelination, as it is called, can greatly increase the speed of signals transmitted between neurons (known as action potentials).

Detailed explanation-2: -Myelin is made by oligodendrocytes in your brain and spinal cord (your central nervous system [CNS]) and by Schwann cells in your peripheral nervous system.

Detailed explanation-3: -Myelin is a lipid-rich material that surrounds nerve cell axons (the nervous system’s “wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon.

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