Which of the following is the best explanation of how a stimulus's strength is transmitted to the central nervous system from sensory nerves?
A) Action potential frequency is increased as stimulus strength increases.
B) An action potential will increase in strength as stimulus strength increases.
C) Action potentials as well as graded potentials are sent to the central nervous system when stimulus strength increases.
D) More than one type of receptor will respond to larger stimulus.

Question

Quizplus · Accepted Answer

Action potential frequency is increased as stimulus strength increases. This is known as the principle of frequency coding, which means that the stronger the stimulus, the more action potentials are generated in a sensory neuron, leading to a higher frequency of these action potentials being sent to the central nervous system.

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