Multiple Choice
Which type of cell receives stimuli and transmits impulses to neurons or to receptors in other organs?
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13. The Peripheral Nervous System
Introduction to Sensory Receptors
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What information does the brain use to determine the intensity of a stimulus?
A
The location of the stimulus on the body
B
The frequency of action potentials
C
The type of sensory receptor activated
D
The duration of the stimulus
Verified step by step guidance1
Understand that the brain interprets the intensity of a stimulus primarily through the frequency of action potentials. This means that more frequent action potentials indicate a stronger stimulus.
Recognize that the location of the stimulus on the body helps the brain determine where the stimulus is occurring, but not its intensity.
Identify that the type of sensory receptor activated provides information about the nature of the stimulus (e.g., touch, pain, temperature), but not directly about its intensity.
Consider the duration of the stimulus, which can affect the perception of intensity over time, but the immediate intensity is more directly related to the frequency of action potentials.
Conclude that while all these factors contribute to the brain's understanding of a stimulus, the frequency of action potentials is the key factor in determining its intensity.
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