Question

5. Assertion(A) : Cyton region of nerve fibre collects information for the brain.
Reason (R): Nerve fibres can either have or lack myelin sheath.​

Answer 1

The assertion is wrong but the reason is correct.

• Some afferent nerve fibers lack the myelin sheath. Never fibers are classified into two types. But this classification depends on the presence or absence of myelin sheath.

• In nonmyelinated nerve cells, the nerve impulses move continuously and less rapidly.

• Autonomic Nerves have nonmyelinated nerve fibers which comprise the smaller axons of the Central Nervous System.