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...
Common Causes Of Nerve Pain. Neuropathy is a painful condition that affects the peripheral nervous system, which includes the sensory, motor and autonomic nerves. These are the nerves related to the organs (including the skin) and muscles.hen it results from physical trauma or injury, the cause of nerve damage or nerve-related pain is easy to identify. However, even after an injury is believed to be healed, nerve damage can remain and the nerves donât return to their normal functioning state.