pacinian corpuscle

• peripheral nervous system: receptors, sensory and motor neurone
• central nervous system: brain and spine
• pacinian corpuscle: responds to pressure changes
• • sensory neurone in the pacinian corpuscle has special channel proteins in its plasma membrane
  • stretch mediated sodium channels open and allow Na+ to enter the sensory neurone only when deformed

  
• establishing a generator potential:

  • when pressure is applied, neurone plasma membrane deforms, widening Na+ channels allowing it to diffuse in
• maintaining resting potential:

  • in the resting state, Na+ channels are too narrow for Na+ to diffuse in