Mechanoreceptors of the Skin
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Questions and Answers

Which type of sensory receptors are most common in the somatic sensory system?

  • Photoreceptors
  • Mechanoreceptors (correct)
  • Chemoreceptors
  • Thermoreceptors
  • Which of the following is NOT a function of mechanoreceptors in the body?

  • Monitoring stretching of the digestive organs and urinary bladder
  • Monitoring force against the teeth (correct)
  • Monitoring pressure in the heart and blood vessels
  • Monitoring skin contact
  • What is the largest and best-studied receptor among the mechanoreceptors of the skin?

  • Meissner's corpuscles
  • Pacinian corpuscles (correct)
  • Ruffini's endings
  • Merkel's disks
  • Where are Ruffini's endings found?

    <p>In both hairy and glabrous skin</p> Signup and view all the answers

    What is the size of Meissner's corpuscles compared to Pacinian corpuscles?

    <p>They are much smaller</p> Signup and view all the answers

    Where are Merkel's disks located?

    <p>Within the epidermis</p> Signup and view all the answers

    What do Krause end bulbs look like?

    <p>Knotted balls of string</p> Signup and view all the answers

    Which type of mechanical energy can the skin NOT sense?

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

    Where are Pacinian corpuscles most densely located in the human body?

    <p>In the fingers</p> Signup and view all the answers

    What is the function of mechanoreceptors in the body?

    <p>Monitoring physical distortion</p> Signup and view all the answers

    Which type of mechanoreceptor has a small receptive field?

    <p>Merkel's disks</p> Signup and view all the answers

    Which type of mechanoreceptor has a large receptive field?

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

    Which type of mechanoreceptor is rapidly adapting?

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

    Which type of mechanoreceptor is slowly adapting?

    <p>Merkel's disks</p> Signup and view all the answers

    Which sensory system uses facial vibrissae to sense the local environment?

    <p>Whiskers on the face</p> Signup and view all the answers

    Which sensory system is a major sensory system for some animals?

    <p>Whiskers on the face</p> Signup and view all the answers

    Which method did Åke Vallbo and his colleagues develop?

    <p>Recording from single sensory axons in the human arm</p> Signup and view all the answers

    What does it feel like when a single hair on the back of your arm is brushed with the tip of a pencil?

    <p>A mosquito bite</p> Signup and view all the answers

    What can be derived by a rat by waving its facial vibrissae (whiskers)?

    <p>Information about the texture of nearby objects</p> Signup and view all the answers

    What did Swedish neuroscientist Åke Vallbo and his colleagues evaluate?

    <p>The perceptions produced by various mechanical stimuli</p> Signup and view all the answers

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