Neuroglia and Nerve Impulse Generation Quiz

To conduct electrical currents

To hold functioning neurons together and protect them (correct)

To generate action potentials

To transmit impulses

A local reversal in the charge on the nerve cell membrane that spreads along the membrane (correct)

A continuous flow of electrical current along the nerve fiber

A sudden increase in the concentration of positive ions inside the membrane

A decrease in the concentration of negative ions outside the membrane

Because they have more potassium ions

Because they have more sodium ions

Because the electrical impulse jumps from node to node in the myelin sheath (correct)

Because they have a larger diameter