Which of the following ions is primarily responsible for the initiation of the action potential in neurons?

A neuron is at rest if the inside of the cell is:

The inhibition of K+ leak channels can lead to:

This refers to a shift in membrane potential toward a more positive value.

Which of the following occurs when the potassium channels start to open?

If the resting membrane potential increases and becomes more negative the probability of nerve impulse:

In which region of a neuron does an action potential usually start?

The all-or-none principle applies to which of the following?