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076 response of nerve impulse

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This experiment demonstrates how different nerve endings respond to different stimuli. By holding an ice cube bowl until the hands are chilled, then trying to touch a bowl of rice grains, the cold-numbed hands will not feel the touch sensation. This shows that nerve impulses from sensations of pain and touch travel to the brain at different speeds, with pain taking longer.

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076 RESPONSE OF NERVE IMPULSES MATERIALS REQUIRED : Bowl of ice Bowl of rice grains
Hold the ice cubes bowl until the hands get chilled. ICE CUBES
Now when you try to touch the bowl of grains, at once the hand doesn't tend to touch the bowl with grains. Bowl with grains
Different types of nerve endings respond to different reactions. Thus feeling of pain travels through brain more slowly than feeling of touch.

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076 response of nerve impulse

  • 1. 076 RESPONSE OF NERVE IMPULSES MATERIALS REQUIRED : Bowl of ice Bowl of rice grains
  • 2. Hold the ice cubes bowl until the hands get chilled. ICE CUBES
  • 3. Now when you try to touch the bowl of grains, at once the hand doesn't tend to touch the bowl with grains. Bowl with grains
  • 4. Different types of nerve endings respond to different reactions. Thus feeling of pain travels through brain more slowly than feeling of touch.