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nociceptor

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
no·ci·cep·tor  (ns-sptr)
n.
A sensory receptor that responds to pain.

[Latin nocre, to hurt; see nocent + (re)ceptor.]


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When nociceptors are stimulated, signals are transmitted through sensory neurons in the spinal cord and are ultimately relayed to the thalamus in the brain and perception of pain takes place.
When they killed off a certain population of nociceptor neurons, the mice stopped responding to being poked, but still responded to heat.
The interactions between leukocyte-derived opioid peptides and peripheral nociceptor endings carrying opioid receptors (24,25) may explain the connection of the pathophysiologic common basis of all the examined variables in our study with the pain mechanisms.
 
 
 
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