When current jumps across an insulating myelin sheath from node to node, the type of impulse conduction is called:

The type of impulse conduction that occurs when the current jumps across an insulating myelin sheath from node to node is known as saltatory conduction. This process allows action potentials to "leap" over the myelinated sections of the axon, which significantly increases the speed of neural transmission. The presence of the myelin sheath, which insulates the axon, presents an impediment to ion flow, and the action potentials are generated at the nodes of Ranvier, which are the unmyelinated gaps. This mechanism is crucial for the efficient functioning of the nervous system as it allows for faster communication between neurons and between different parts of the body.