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Moreover, the distinctions based on function between neurons and other cells such as cardiac and muscle cells are not helpful.

Thus, the fundamental difference between a neuron and a nonneuronal cell is a matter of degree.

Cellular neuroscience is the study of neurons at a cellular level.

This includes morphology and physiological properties of single neurons.

If more of the same type of postsynaptic receptors are activated, then more Na will enter the postsynaptic membrane and depolarize cell.An action potential can be divided into several sequential phases: threshold, rising phase, falling phase, undershoot phase, and recovery.Following several local graded depolarizations of the membrane potential, the threshold of excitation is reached, voltage-gated sodium channels are activated, which leads to an influx of Na ions.As the rising phase reaches its peak, voltage-gated Na channels are inactivated whereas voltage-gated K channels are activated, resulting in a net outward movement of K ions, which repolarizes the membrane potential towards the resting membrane potential.Repolarization of the membrane potential continues, resulting in an undershoot phase or absolute refractory period.

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Neurons are diverse with respect to morphology and function.

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