Graded potentials are small changes in the membrane potential of a neuron or other excitable cell that occur in response to stimuli. Unlike action potentials, which are all-or-nothing responses, graded potentials can vary in magnitude and direction depending on the strength and duration of the stimulus. Key characteristics of graded potentials include: 1. **Magnitude**: The amplitude of a graded potential is proportional to the strength of the stimulus. A stronger stimulus produces a larger graded potential.
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