Department of pathological physiology

Abstract

It is known that as long as antinociceptive system functions adequately pain can develop as a component of different injuries. One of the most important mechanisms of antinociception – humoral that means production of substances that block pain transmission and formation of pain feeling. Humoral mechanism includes: opioid, monoaminergic (norepinephrine, dopamine, serotonin), cholinergic, GABAergic, cannabinoid and orexin systems. Inflow of pain impulses induces production and excretion of different chemical substances which forms analgesia in different levels of pain system.

Keywords

• antinociceptive system
• analgesia
• pain
• humoral mechanisms