Action potentials result from:
A)an inflow of positively charged sodium ions.
B)an outflow of positively charged potassium ions.
C)an inflow of potassium followed by an outflow of sodium.
D)an inflow of sodium followed by an outflow of potassium.

Question

Quizplus · Accepted Answer

Action potentials result from an initial inflow of positively charged sodium ions, followed by an outflow of positively charged potassium ions. This process generates an electrical impulse that travels along the axon of a neuron. Therefore, choice D, an inflow of sodium followed by an outflow of potassium, is the best option.

Action Potentials Result From