The<unk>  is a neural circuit that regulates the immune response to injury and invasion. All reflexes have an afferent and efferent arc. The<unk>  has a sensory, afferent arc, which is activated by cytokines, and a motor, or efferent arc, which transmits action potentials in the vagus nerve to suppress cytokine production. Increased signaling in the efferent arc inhibits inflammation and prevents organ damage. It has been also shown that the brain can use this circuit not only to regulate the immune response but also to extend the immunological memory
Inflammatory reflex
Neuraxial blockade
Pain stimulus
Overpressure
Allostasis
Neural facilitation
Cushing reflex
Neural adaptation