Question

saltatory propagation occurs in ____ axons, in which action potentials ____. select the best answer. unmyelinated; move from one node of ranvier to another myelinated; move from one node of ranvier to another myelinated; move continuously along the axon toward the axon hillock unmyelinated; spread by depolarizing the adjacent region of the axon membrane

Explanation:

Saltatory propagation is a mode of nerve impulse conduction. Myelinated axons have myelin sheaths with gaps called nodes of Ranvier. Action potentials "jump" from one node of Ranvier to another in myelinated axons during saltatory propagation. Unmyelinated axons have continuous conduction (not saltatory). Also, action potentials move away from the axon hillock (not towards it in the context of normal impulse conduction).

Answer:

myelinated; move from one node of Ranvier to another