ANATOMY

Detailed explanation-1: -A nerve impulse is the electric signals that pass along the dendrites to generate a nerve impulse or an action potential. An action potential is due to the movement of ions in and out of the cell. It specifically involves sodium and potassium ions.

Detailed explanation-2: -An action potential can be further broken down into its separate stages: depolarization, repolarization, hyperpolarization, and the refractory period.

Detailed explanation-3: -The action potential travels rapidly down the neuron’s axon as an electric current and occurs in three stages: Depolarization, Repolarization and Recovery. A nerve impulse is transmitted to another cell at either an electrical or a chemical synapse .

Detailed explanation-4: -Resting neuron: The plasma membrane at rest is polarized. Action potential initiation and generation: A stimulus depolarizes the neurons membrane. Action potential initiation and generation: Propagation of the action potential: Repolarization: Repolarization:

Detailed explanation-5: -Action potential. Unlike a graded potential, an action potential is capable of traveling long distances. Repolarization. Hyperpolarization. Refractory period.