Cutaneous receptor organs

  • Cutaneous receptors organs are those sensory receptors present in skin.
  • When skin sensed any sensation then it generates impulse which is sensed by these receptors present in dermis and epidermis.

 

Types of cutaneous receptors organ

a. Mechanoreceptors

  • Also called Meisner’s corpuscles
  • Present in dermis
  • Sensed the touch sensation (mechanical stimulus)
  • These neurons carry impulse towards CNS.

 

b. Corpuscular receptors

  • Also called Pacinian corpuscles.
  • Present in hypodermis or the base of dermis.
  • Detect the Pressure
  • These cells are connected by dendrites and carry impulse towards CNS.

 

 

c. Thermoreceptors

  • These are branched free nerve ending
  • Also called Ruffini’s ending and krauses’s end bulb.
  • Detect the Temperature (heat or cold).
  • This nerve carries impulse towards brain.

 

d. Nocireceptors

  • Branched free ending
  • Sensitive to Pain.
  • Nocireceptors exposed when surface upto dermis is burned. If burnt in 450 C then it detects pain and signal pass to spinal cord or thalamus of brain.
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