Pain explained in four pillars as a conceptual base for therapy.
Overloads and disfunctions are registered by peripheral nerves and transported to the spinal cord and from there to the brain.
Pillar 1. Somatic system nerves register stimuli coming from musculo-skeletal and skin tissues.
Pillar 2. Autonomic nerves register stimuli from the organs, blood- and lymph flow, the hormonal glands and the immune systerm.
Pillar 3. All stimuli from pillar 1 and 2 are coming together in the spinal cord and transported to the brain centres. Spinal cord and brain form the "central nervous system".
Pillar 4. In the middle of the brain lies the deep limbic system where the incoming stimuli are compared with emotional, stress, environment factors and learning processes. Al these factors influence the processing of stimuli. Multiple brain centres form a neural circuit based on all these factors. When these factors and stimuli are judged as "danger" the brain will create pain as an output signal for warning the person.
Communication between the 4 pillars is guided by neurotransmittors. Some of these increase , others decrease the incoming stimuli. Circulating hormones and immune system particles can also decrease or increase stimuli.
The end-result depends on all these chemicals and stimuli. Pain, pain time and pain intensity is therefore not only a result of the dysfunctions and overloads in pillar 1 and 2.