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This article provides an overview of the physiological mechanisms of pain and the important pain pathways. We will discuss pain receptors, transmission of pain signals to the spinal cord and pain pathways within the spinal cord. We will also look at how pain can be modulated at different levels along the pathway.
Pain is a subjective experience with two complementary aspects: one is a localized sensation in a particular body part; the other is an unpleasant quality of varying severity commonly associated with behaviors directed at relieving or terminating the experience.
Pain processing in the brain The experience of pain is complex and subjective, and is affected by factors such as cognition (eg distraction or catastrophising), mood, beliefs and genetics. The somatosensory cortex is important for the localisation of pain. However, imaging techniques such as functional magnetic resonance imaging
If the brain decides protection is needed, then pain is experienced! Key points: • Pain is there to protect us • Chronic pain is a common experience • Danger messages go to many areas of the brain • No matter where we feel pain in the body, all pain is processed by the brain
Transmission. During transmission, the nerve impulse travels from the site of transduction to the brain in three stages: from nociceptors to spinal cord, from spinal cord to brain stem, and from brain stem to other parts of the brain.
Transmission -- A nerve sends the signal to the central nervous system. The relay of information usually involves several neurons within the central nervous system. Pain center reception -- The brain receives the information for further processing and action.
28 Σεπ 2015 · This article describes how that “pain message” is transmitted to the spinal cord and the brain and how the brain responds to the stimulus, while identifying pain relief strategies linked to the physiological process.
