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...
Referred pain-Paresthesia (Pins and Needles). Paresthesia (or paraesthesia) is the medical term given to pins and needles. The term aesthesia comes from the Greek word aisthesis, meaning sensation; para means beside (or parallel).araesthesia can also be caused pressure on the spinal cord itself (specifically, pressure on the dura mater, the outer-most sheath, or meninx, of the spinal cord); a number of spinal conditions can lead to this.