Podcast
Questions and Answers
What is the primary function of rapidly adapting (phasic) receptors?
What is the primary function of rapidly adapting (phasic) receptors?
- Provide continuous information about stimulus intensity.
- Inform the CNS about the start, duration, and end of a stimulus. (correct)
- Measure the strength of a constant stimulus.
- Assist in detecting prolonged stimuli.
How do slowly adapting (tonic) receptors respond to stimuli?
How do slowly adapting (tonic) receptors respond to stimuli?
- They respond only to novel stimuli.
- They stop discharging impulses after initial stimulation.
- They continue discharging impulses at a slow, steady rate as long as the stimulus is applied. (correct)
- They initiate discharge at a high rate for a short period.
What is adaptation in the context of receptors?
What is adaptation in the context of receptors?
- A change in the type of receptor activating.
- A decline in action potential frequency in response to constant stimulation. (correct)
- An increase in action potential frequency over time.
- The ability to detect new stimuli only.
Which of the following is an example of a slowly adapting receptor?
Which of the following is an example of a slowly adapting receptor?
What is one important role of slowly adapting (tonic) receptors?
What is one important role of slowly adapting (tonic) receptors?
Which receptor type adapts quickly to prevent persistent sensations?
Which receptor type adapts quickly to prevent persistent sensations?
What contributes to the readjustment in receptor structure during adaptation?
What contributes to the readjustment in receptor structure during adaptation?
Which mechanism is responsible for the decrease in receptor potential and action potential discharge?
Which mechanism is responsible for the decrease in receptor potential and action potential discharge?
What phenomenon describes the change in photosensitive pigment concentration in photoreceptors?
What phenomenon describes the change in photosensitive pigment concentration in photoreceptors?
How does stimulus energy dissipate during receptor adaptation?
How does stimulus energy dissipate during receptor adaptation?
Flashcards
Receptor Adaptation
Receptor Adaptation
A decrease in the frequency of nerve impulses from receptors when exposed to a constant stimulus.
Phasic Receptors
Phasic Receptors
Receptors that react vigorously when a stimulus begins, then quickly reduce and stop their activity while the stimulus persists.
Tonic Receptors
Tonic Receptors
Receptors that continuously send impulses as long as a stimulus persists.
Rapid Adaptation
Rapid Adaptation
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Slow Adaptation
Slow Adaptation
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Receptor Adaptation
Receptor Adaptation
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Structure Readjustment
Structure Readjustment
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Sodium Channel Inactivation
Sodium Channel Inactivation
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Stimulus Energy Spread
Stimulus Energy Spread
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Photoreceptor Adaptation
Photoreceptor Adaptation
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Study Notes
Sensory Receptor Adaptation
- Sensory receptors adapt, meaning the frequency of action potentials decreases when a stimulus is constant
- The rate of adaptation varies among receptors
- Rapidly adapting receptors:
- Start discharging at a high rate and then decrease rapidly
- Example: touch receptors
- Function: signal the start and end of a stimulus
- Slowly adapting receptors:
- Continue discharging impulses at a slow rate without decline
- Example: muscle spindles, Golgi tendon organs
- Function: provide continuous sensory info about stimuli such as body posture
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Description
Test your knowledge on sensory receptor adaptation, including the differences between rapidly and slowly adapting receptors. Learn how these receptors function and their importance in processing sensory information. This quiz will help you understand the mechanisms behind sensory perception.
