During which phase of the action potential do the voltage-sensitive ion channels return to their pre-depolarization permeability?

Why is it difficult to definitively identify the type, size, number, and location of restorations on dental radiographic images?

What will be an ideal response?

The taste buds are monitored by cranial nerves?

A) ?IX, X, XI. B) ?IX, XI, XII. C) ?VII, IX, X. D) ?V, VII, IX.