The nerve impulse conduction along an unmeylinated axon is called continuous conduction.
An activity potential is directed consistently along an unmyelinated axon from its underlying fragment to the axon terminals.
The term nonstop alludes to the way that the activity potential is recovered when voltage-gated Na+ directs open in each continuous fragment of the axon, not at hubs of Ranvier.
How are nerve impulses conducted in Unmyelinated axons?
unmyelinated axons are grey matter
In unmyelinated axons, the activity potential voyages consistently along the axons.
For instance, in unmyelinated C filaments that lead torment or temperature (0.4-1.2 μm in distance across), conduction speed along the axon is 0.5-2.0 m/s.
To learn more about Unmyelinated axons from the given link