Somatic and visceral sensory integration in the thoracic spinal cord.

摘要: Publisher Summary This chapter discusses the lower thoracic spinal cord that receives bulk of visceral sensory input, mediated by sympathetic splanchnic nerves. These afferent fibres transmit nociceptive signals, from many abdominal viscera, to cord, where and somatic information are jointly processed. All available experimental evidence supports main postulates “convergence-projection” theory referred pain. In spite extensive electrophysiological investigations no pathway has been found, carrying, exclusively, information. indicates “true” pain is not due activation specific channels, but, more likely, consequence spread lesion regions innervated nerves, whose stimulation leads restricted well-localized experiences deep Therefore, excitation receptors always evokes ill-localized, poorly discriminated, as structures.