The action potential is an all or nothing event that is primarily
A)25 percent electrical and 75 percent chemical.
B)50 percent electrical and 50 percent chemical.
C)electrical.
D)chemical.

Question

Quizplus · Accepted Answer

The action potential is primarily an electrical event. It is caused by the movement of ions, specifically sodium and potassium ions, into and out of the neuron. This movement of ions creates a change in the membrane potential, which propagates down the length of the neuron. While there are also chemical events involved in the action potential, such as the opening and closing of ion channels and the release of neurotransmitters, these are secondary to the electrical events.

The Action Potential Is an All or Nothing Event That