Medical Definition of TONUS. 1. : tone 2a. 2. : a state of partial contraction that is characteristic of normal muscle, is maintained at least in part by a continuous bombardment of motor impulses originating reflexly, and serves to maintain body postureâcalled also muscle tone; compare clonus.
Neuralgia is the definitive term for nerve pain. Words ending in -algia indicate pain. A closely related word is neuropathy. It indicates an injury, disease, deterioration, defect or other abnormality of the nerve, which usually produces pain, pos...
Pinched nerve is a general term used to describe a painful condition that occurs when any structure in your body puts abnormal pressure on a nearby nerve, or triggers nerve stretching or narrowing. When pressure affects a nerve root in or near your spinal column, the resulting condition is called a radiculopathy.