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dorsal horn

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Noun1.dorsal horn - one of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibers
afferent, afferent nerve, sensory nerve - a nerve that passes impulses from receptors toward or to the central nervous system
nervus spinalis, spinal nerve - any of the 31 pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal)


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In the study, the researchers used functional magnetic resonance imaging (MRI) to scan the spinal cords of 15 healthy volunteers, focussing on an area called the dorsal horn, which transmits pain signals coming up through the spinal cord into the pain-related areas in the brain.
In a article published in Science, Falk Eippert and colleagues from the University Medical Centre, Hamburg, found those who believed they had received pain relief experienced a dampening of the pain signalling in a region of the spinal cord, the dorsal horn.
Slow pain is however transmitted by the slower C fibers to lamina II and III or dorsal horns also known as substantia gelatinosa and neurons take off and join fast pain pathways and move upwards along the anterolateral pathway.
 
 
 
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