schwann cells

Neuroglia: Introduction, Classification and Functions

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The supporting cells of the nervous system that are non-excitable are called neuroglia or simply glia (glia=glue). They do not transmit nerve impulse (action potential) for which they are called non-neural cells or glial cells. They are about 10-15 times greater than the number of neurons. During infection, mostly they show or play an important … Read more

Differences between Medullated and Non-medullated nerve fibre

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  S.N Medullated nerve fibre Non-medullated nerve fibre 1. It is also known as myelinated nerve fibre. It is also known non-myelinated nerve fibre. 2. The nerve fibre with medullary sheath is called medullated fibre. The nerve fibre without medullary sheath  is called non-medullated nerve fibre. 3. It is found in white matter of brain … Read more