ANATOMY

Detailed explanation-1: -Action potential in a neuron, showing depolarization, in which the cell’s internal charge becomes less negative (more positive), and repolarization, where the internal charge returns to a more negative value.

Detailed explanation-2: -An action potential in the nerve fibre is produced when positive and negative changes on the outside and the inside of the axon membrane are reversed because. more potassium ions enter the axon as compared to sodium ions leaving it.

Detailed explanation-3: -Hyperpolarization is when the membrane potential becomes more negative at a particular spot on the neuron’s membrane, while depolarization is when the membrane potential becomes less negative (more positive).

Detailed explanation-4: -The negative pole of the battery makes the inside of the cell more negative than it was before. A change in potential that increases the polarized state of a membrane is called a hyperpolarization.

Detailed explanation-5: -The Action Potential. The movement of a signal through the neuron and its axon is all about ions. An ion is a charged particle, such as Na+, the sodium ion. It has a positive charge, because it is missing one electron.