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Encyclopedia > Nociceptors

A nociceptor is a sensory receptor that responds only after a high level of stimuli or a level enough to hurt the individual. When they are activated they can generate a reflex and pain.


Location

Nociceptors are dendrites at the ends of neurons.


Functions

Nociceptors respond to intense mechanical deformation, excessive heat, and many chemicals.


See also


Nervous system - Sensory system Edit (http://en.wikipedia.org/w/wiki.phtml?title=MediaWiki:Sensory_system&action=edit)

Visual system - Auditory system - Olfactory system - Gustatory system - Somatosensory system

  Results from FactBites:
 
Nociceptor (598 words)
A nociceptor is a sensory receptor that sends signals that cause the perception of pain in response to potentially damaging stimulus.
Nociceptors are the nerve endings responsible for nociception, one of the two types of persistent pain (the other, neuropathic pain, occurs when nerves in the central or peripheral nervous system are damaged)..
Pain —; Pain's an unpleasant sensation which may be associated with actual or potential tissue damage and which may have physical and emotional components.
nociceptor - Search Results - MSN Encarta (126 words)
A nociceptor is a sensory receptor that sends signals that cause the perception of pain in response to potentially damaging stimulus.
Nociceptors are the nerve endings responsible for nociception, one...
In medicine, the pupillary reflex or pupillary light reflex, is the reduction of pupil size in...
  More results at FactBites »


 

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