In the context of the neural impulse, which of the following causes the depolarization of neuron membranes? Multiple Choice
The inside of the neuron becomes negatively charged because of the excess of calcium ions.
Sodium gates open, and sodium ions flow into the neuron.
The outside of the neuron becomes positively charged because of the excess of chlorine ions.
О O
Potassium channels open, and potassium ions flow out of the neuron.