Loss of Touch Sensation and Its Effects on Individuals
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Questions and Answers

What is the main consequence of losing the ability to feel sensations through the skin?

  • Better interaction with the surroundings
  • Improved motor skills
  • Increased chances of injury (correct)
  • Enhanced perception of the environment

Experiments with participants who had their hands temporarily anesthetized revealed that they...

  • Applied more force than necessary when carrying out tasks (correct)
  • Performed tasks with greater accuracy
  • Experienced enhanced coordination
  • Reduced their effort in completing tasks

Ian Waterman's somatosensory system broke down due to...

  • A genetic mutation affecting his skin cells
  • An autoimmune reaction that destroyed neurons (correct)
  • An increase in sensory feedback
  • A deficiency in vitamin intake

Which component is NOT included in the somatosensory system?

<p>Eyes (C)</p> Signup and view all the answers

What is the role of cutaneous senses in the somatosensory system?

<p>Perceiving sensations from the environment (B)</p> Signup and view all the answers

How did losing the sense of touch affect participants in experiments with temporarily anesthetized hands?

<p>They applied excessive force when performing tasks (B)</p> Signup and view all the answers

What is the function of proprioception?

<p>Sensing the position of the body and limbs (C)</p> Signup and view all the answers

Which type of mechanoreceptor is associated with perceiving tactile slip and controlling grip force?

<p>Meissner corpuscle/RA1 fiber (B)</p> Signup and view all the answers

What is the main function of the Ruffini cylinder?

<p>Perceiving stretching (B)</p> Signup and view all the answers

Where are Merkel receptors located in the skin?

<p>Close to the surface of the skin (B)</p> Signup and view all the answers

Which mechanoreceptor is responsible for perceiving vibration and fine textures?

<p>Pacinian corpuscle (C)</p> Signup and view all the answers

What is the characteristic of RA1 fibers in mechanoreceptors?

<p>They fire only at the beginning or end of a pressure stimulus (A)</p> Signup and view all the answers

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