Podcast
Questions and Answers
Which type of sensory receptor is associated with low-frequency vibrations and fine touch?
Which type of sensory receptor is associated with low-frequency vibrations and fine touch?
- Free Nerve Endings
- Pacinian Corpuscles
- Merkel Discs
- Meissner Corpuscles (correct)
Which sensory receptor types adapt quickly?
Which sensory receptor types adapt quickly?
- Meissner Corpuscles and Merkel Discs
- Pacinian Corpuscles and Meissner Corpuscles (correct)
- Ruffini Corpuscles and Merkel Discs
- Free Nerve Endings and Ruffini Corpuscles
What sensation is primarily detected by Ruffini Corpuscles?
What sensation is primarily detected by Ruffini Corpuscles?
- Stretch (correct)
- Pressure
- Temperature
- Pain
Where are Merkel Discs primarily located?
Where are Merkel Discs primarily located?
Which fiber types are associated with Free Nerve Endings?
Which fiber types are associated with Free Nerve Endings?
Which sensory receptor is primarily responsible for detecting high-frequency vibrations?
Which sensory receptor is primarily responsible for detecting high-frequency vibrations?
Which type of sensory receptor is located primarily in joints and is involved in sensing joint angles?
Which type of sensory receptor is located primarily in joints and is involved in sensing joint angles?
What type of adaptation do Meissner Corpuscles exhibit?
What type of adaptation do Meissner Corpuscles exhibit?
Where are Free Nerve Endings NOT typically located?
Where are Free Nerve Endings NOT typically located?
Which receptor type is primarily responsible for detecting pressure and deep static touch?
Which receptor type is primarily responsible for detecting pressure and deep static touch?
What is a characteristic of C fibers associated with Free Nerve Endings?
What is a characteristic of C fibers associated with Free Nerve Endings?
Which type of sensory receptor primarily detects stretch and changes in joint angle?
Which type of sensory receptor primarily detects stretch and changes in joint angle?
Where are Pacinian Corpuscles predominantly located?
Where are Pacinian Corpuscles predominantly located?
Which type of sensation is NOT detected by Meissner Corpuscles?
Which type of sensation is NOT detected by Meissner Corpuscles?
Which receptor is known for its slow adaptation and is primarily located in the fingertips?
Which receptor is known for its slow adaptation and is primarily located in the fingertips?
Which type of receptor is most likely to signal changes in joint angle and stretch?
Which type of receptor is most likely to signal changes in joint angle and stretch?
Which sensory receptor type is specialized for detecting high-frequency vibrations and pressure?
Which sensory receptor type is specialized for detecting high-frequency vibrations and pressure?
In which type of skin are Meissner Corpuscles primarily found?
In which type of skin are Meissner Corpuscles primarily found?
Which sensory receptors are responsible for perceiving pain and temperature sensations?
Which sensory receptors are responsible for perceiving pain and temperature sensations?
What kind of adaptation do Ruffini Corpuscles exhibit?
What kind of adaptation do Ruffini Corpuscles exhibit?
Flashcards
Free Nerve Endings
Free Nerve Endings
Sensory receptors found in all tissues (except cartilage and eyes) that detect pain and temperature.
Meissner Corpuscles
Meissner Corpuscles
Sensory receptors in hairless skin that detect low-frequency vibration, light touch, and skin indentation.
Pacinian Corpuscles
Pacinian Corpuscles
Sensory receptors in deep skin, ligaments, and joints that detect high-frequency vibration and pressure.
Merkel Discs
Merkel Discs
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Ruffini Corpuscles
Ruffini Corpuscles
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Sensory Receptors
Sensory Receptors
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Adaptation Speed
Adaptation Speed
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What do Free Nerve Endings detect?
What do Free Nerve Endings detect?
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Meissner's Corpuscles: Quick or Slow?
Meissner's Corpuscles: Quick or Slow?
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Pacinian Corpuscles: Vibration?
Pacinian Corpuscles: Vibration?
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Merkel Discs: What type of touch?
Merkel Discs: What type of touch?
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Ruffini Corpuscles: What do they sense?
Ruffini Corpuscles: What do they sense?
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Aδ Fiber
Aδ Fiber
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C Fiber
C Fiber
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Rapid Adaptation
Rapid Adaptation
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Slow Adaptation
Slow Adaptation
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What do Pacinian Corpuscles detect?
What do Pacinian Corpuscles detect?
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Study Notes
Sensory Receptors
-
Free Nerve Endings:
- Sensory neuron fiber type: Aδ (fast, myelinated) and C (slow, unmyelinated)
- Location: All tissues except cartilage and eye lens; numerous in skin
- Senses: Pain, temperature
-
Meissner Corpuscles:
- Sensory neuron fiber type: Large, myelinated fibers; adapt quickly
- Location: Glabrous (hairless) skin
- Senses: Low-frequency vibration, dynamic fine/light touch; skin indentation
-
Pacinian Corpuscles:
- Sensory neuron fiber type: Large, myelinated fiber; adapt quickly
- Location: Joints, deep skin layers, ligaments
- Senses: High-frequency vibration, pressure
-
Merkel Discs:
- Sensory neuron fiber type: Large, myelinated fibers; adapt slowly
- Location: Fingertips and superficial skin
- Senses: Deep static touch (e.g., shapes, edges), pressure
-
Ruffini Corpuscles:
- Sensory neuron fiber type: Large, myelinated fiber; adapt slowly; interwoven among collagen fiber bundles
- Location: Joints and fingertips
- Senses: Stretch, joint angle change
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