Quote:
Originally Posted by AnGe|ic
actually there is no substance called pain ... the deficiency exists in pain mediators that are all transmitters and molecules that cause pain and induce pain
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yes there is 2akid it's a neurotrasmitter but it can be called so "substance P" or "substance pain"
In
neuroscience,
Substance P is a
neuropeptide: a short-chain
polypeptide that functions as a
neurotransmitter and as a
neuromodulator. It belongs to the
tachykinin neuropeptide family.
Pain
Substance P is involved in the transmission of
pain impulses from peripheral receptors to the
central nervous system.
SOurce:
http://en.wikipedia.org/wiki/Substance_P
Another source:
How Substance P is Related to Pain
Nerve cells communicate with one another through neurotransmitters. Substance P is one such neurotransmitter. It is a protein found in the brain and spinal cord, and is associated with some inflammatory processes in the joints. Its function is to cause pain.
source:
http://arthritis.about.com/od/arthqa/f/substanceP.htm