The Mechanics of Tactile Stimulation
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Questions and Answers

Which type of mechanoreceptor is buried in the subcutaneous tissue and senses displacements of wide areas of the skin?

  • Merkel cells
  • Meissner's corpuscles
  • Pacinian corpuscles (correct)
  • Ruffini endings
  • What do Pacinian corpuscles detect?

  • Low-frequency stimulation
  • Pressure
  • High-frequency stimulation (correct)
  • Stretching
  • Which mechanoreceptor senses stretching of the skin?

  • Meissner's corpuscles
  • Pacinian corpuscles
  • Ruffini endings (correct)
  • Merkel cells
  • What type of stimulation are Pacinian corpuscles NOT capable of detecting?

    <p>Temperature</p> Signup and view all the answers

    What is the main difference between Pacinian corpuscles and Ruffini endings?

    <p>Size of receptive fields</p> Signup and view all the answers

    Which mechanoreceptor is NOT buried in the subcutaneous tissue?

    <p>Meissner's corpuscles</p> Signup and view all the answers

    Which mechanoreceptor provides information about the shapes of objects?

    <p>Ruffini endings</p> Signup and view all the answers

    Which mechanoreceptor has the largest receptive fields compared to other mechanoreceptors?

    <p>Pacinian corpuscles</p> Signup and view all the answers

    Which type of mechanoreceptor is responsible for signaling the pressure and shape of an object touching the skin?

    <p>Merkel discs</p> Signup and view all the answers

    Which type of mechanoreceptor is responsive to abrupt changes in the shape of the edges of objects or irregularities on the surface of objects?

    <p>Meissner corpuscles</p> Signup and view all the answers

    Which type of mechanoreceptor provides information about the curvature of objects?

    <p>Merkel discs</p> Signup and view all the answers

    Which type of mechanoreceptor is important for sensing movement of an object across the skin?

    <p>Rapidly adapting mechanoreceptors</p> Signup and view all the answers

    Where are Merkel discs and Meissner corpuscles predominantly located?

    <p>Superficial layers of glabrous skin</p> Signup and view all the answers

    What type of tactile stimulation do Merkel discs primarily detect?

    <p>Continuous pressure and shape of an object</p> Signup and view all the answers

    What type of tactile stimulation do Meissner corpuscles primarily detect?

    <p>Abrupt changes in the shape of the edges of objects</p> Signup and view all the answers

    What additional information do hair follicle receptors provide to the brain about tactile stimulation?

    <p>Displacements of adjacent hairs</p> Signup and view all the answers

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