(N/A) Medullated nerve fibersNon-medullated nerve fibers$1$. Axon is enveloped by a thick myelin sheath and Schwann cells on the outer side.$1$. Axon

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(N/A) Medullated nerve fibersNon-medullated nerve fibers$1$. Axon is enveloped by a thick myelin sheath and Schwann cells on the outer side.$1$. Axon is enveloped by Schwann cells,but the myelin sheath is absent or negligible.$2$. Nodes of Ranvier are present at regular intervals.$2$. Nodes of Ranvier are absent.$3$. Cranial and spinal nerves are medullated.$3$. The autonomic neural system contains non-myelinated nerves.

Class 11 Biology Neural Control and Coordination Neuron as Structural and Functional Unit of Neural System

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Differentiate between medullated nerve fibers and non-medullated nerve fibers.

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Medullated nerve fibers	Non-medullated nerve fibers
$1$. Axon is enveloped by a thick myelin sheath and Schwann cells on the outer side.	$1$. Axon is enveloped by Schwann cells,but the myelin sheath is absent or negligible.
$2$. Nodes of Ranvier are present at regular intervals.	$2$. Nodes of Ranvier are absent.
$3$. Cranial and spinal nerves are medullated.	$3$. The autonomic neural system contains non-myelinated nerves.

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Neural Control and Coordination

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Neuron as Structural and Functional Unit of Neural System