Tactile sensation and proprioception

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5 Terms

1
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Somatosensation combines what senses?

Touch, vibration, temperature, proprioception, pain

2
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Sensory Fibers (function)

  • Type Ia (spindle)

  • Type Ib (GTO)

  • Type II (spindle)


  • Rate of change in muscle length and velocity

  • Changes in muscle tension

  • Respond to static muscle


3
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Merkel receptors are - adapting with - RF

Meissner receptors are - adapting with - RF

Ruffini receptors are - adapting with - RF

Pacinian receptors are - adapting with - RF

Slow, small

Fast, small

Slow, large

Fast, large

4
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List out DCML pathway

First order neuron through DRG, travel up dorsal columns of sc, become second order at crossing (medial lemniscus), enter thalamus, terminate at s1

5
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Proprioception is critical for movement. Damage can be at -. Test clinically with easy - - - or - - -

Cerebellum, nose to finger, joint position test