Assertion:Myelinated nerve fibres are present in spinal and cranial nerves.
Reason:Myelinated nerves conduct impulses more radidly than unmyelinated nerves.

Non-myelinated nerve fibres occur in

Nerve fibres conduct impulses in

Impulses travel much more rapidly along myelinated nerve.

Impulses travel much more rapidly along myelinated nerve

Assertion : Myelin sheath insulates the nerve fibre and prevents its depolarisation. Reason : Nerve impulses are conducted more rapidly in non-myelinated nerve fibres than in myelinated ones.

What is a myelinated nerve fibre?

In myelinated nerve fibres, the myelin sheath is present around the

In myelinated nerve fibres, the myelin sheath is present around the