Neopterin A substance produced by macrophages when they encounter a foreign substance such as a virus. Neuralgia Pain, sometimes severe, that manifests along the length of a nerve and arises within the nerve itself, not in the tissue from which the sensation seems to arise. Neuritis Nerve inflammation, usually with part of a degenerative process. Neuropathy Any abnormal, degenerative or inflammatory state of the peripheral nervous system. A white blood cell which plays a central role in the immune system.
Neutrophils are the immune system's main defense against bacterial infections.
This subsystem works as a direct antagonist to he sympathetic division, and organ functions balance between them. At the edges, especially circulation or nerves. Peripheral neuropathy A disorder of the nerves, usually involving the hands, feet, arms and legs. Symptoms may include numbness, a tingling or burning sensation, sharp pain, weakness and abnormal reflexes. In severe cases, paralysis may result.