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Separate
components for pain and touch
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Brain stem
nuclei:
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Caudal
nucleus (pain)
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Interpolar
nucleus (caudal part for pain-mouth)
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Oral nucleus
(???)
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Main sensory
nucleus
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3 Separate
thalamic pain nuclei & 1 for touch:
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Pain (VPM,
VMpo, MD)
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Touch (VPM)
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3 Separate
cortical representations:
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Postcentral
gyrus (localization)
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Insular
(important for pain)
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Cingulate
(emotions, esp. for pain)
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Pain
suppression system
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PAG-->Raphe
nuclei (5-HT)-->Caudal nucleus
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