| MRO | master reference oscillator; medical review officer; minimal recognizable odor; muscle receptor orga... |
|---|---|
| MRT | magnetic resonance tomography; maximum relaxation time; median range score; median reaction time; me... |
| MSA | major serologic antigen; male-specific antigen; mannitol salt agar; Medical Services Administration;... |
| MSE | medical support equipment; mental status examination; muscle-specific enolase |
| msp | muscle spasm |
| muscle relaxation | That phase of a muscle twitch during which a muscle returns to a resting position. (12 Dec 1998) |
|---|---|
| muscle repositioning | The surgical replacement of a muscle attachment into a more functional position. (05 Mar 2000) |
| muscle resection | Shortening of the tendon of the ocular muscle in strabismus. (05 Mar 2000) |
| muscle rigidity | Continuous tonic contraction of skeletal muscle. (12 Dec 1998) |
| muscle serum | The fluid remaining after the coagulation of muscle plasma and the separation of myosin. (05 Mar 2000) |
| muscle, skeletal | Striated muscles having fibres connected at either or both extremities with the bony framework of the body. These are found in appendicular and axial muscles. (12 Dec 1998) |
| muscle, smooth | Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibres are bound together into sheets or bundles by reticular fibres and frequently elastic nets are also abundant. (12 Dec 1998) |
| muscle, smooth, vascular | The nonstriated, involuntary muscle tissue of blood vessels. (12 Dec 1998) |
| muscle sound | A fine murmur heard on auscultation over the belly of a contracting muscle. (05 Mar 2000) |
| muscle spasm | <physiology> Painful involuntary muscle contractions. Often seen in skeletal muscle after acute injury (muscle strain). (07 Apr 1998) |
| muscle spasticity | A combination of the symptoms of increased resistance to lengthening, hyperactive tendon reflexes, and clonus. Muscle spasticity occurs in hemiplegia. (12 Dec 1998) |
| muscle spindle | A specialised muscle fibre found in tetrapod vertebrates. A bundle of muscle fibres is innervated by sensory neurons. Stretching the muscle causes the neurons to fire, the muscle spindle thus functions as a stretch receptor. (18 Nov 1997) |
| muscle spindles | Mechanoreceptors found between skeletal muscle fibres. Muscle spindles are arranged in parallel with muscle fibres and respond to the passive stretch of the muscle, but cease to discharge if the muscle contracts isotonically, thus signaling muscle length. The muscle spindles are the receptors responsible for the stretch or myotactic reflex (reflex, stretch). (12 Dec 1998) |
| muscle strain | An acute tearing injury to muscle. Usually associated with a small amount of bleeding (haematoma) into the injured muscle tissue. (27 Sep 1997) |
| muscle-tendon attachment | The union of a muscle and tendon fibre in which sarcolemma intervenes between the two; the end of the muscle fibre may be rounded, conical, or tapered. Synonym: muscle-tendon junction. (05 Mar 2000) |