| saltatory chorea | Rhythmic dancing movements, as in procursive chorea. (05 Mar 2000) |
|---|---|
| saltatory conduction | A method of neuronal transmission in vertebrate nerves, where only specialised nodes of Ranvier participate in excitation. This reduces the capacitance of the neuron, allowing much faster transmission. See: myelin, Schwann cells. (18 Nov 1997) |
| saltatory evolution | The theory that evolution of a new species from an older one may occur as a large jump, such as a major repatterning of chromosomes, rather than by gradual accumulation of small steps or mutations. Compare: emergent evolution. (05 Mar 2000) |
| saltatory movement | Abrupt jumping movements of the sort shown by some intracellular particles. Mechanism unclear. (18 Nov 1997) |
| saltatory replication | The sudden amplification of a DNA sequence to generate many copies in a tandem arrangement. Possible mechanism for the origin of satellite DNA. (18 Nov 1997) |
| saltatory spasm | A spasmodic affection of the muscles of the lower extremities. Synonym: Bamberger's disease, dancing spasm, Gowers disease. (05 Mar 2000) |
| saltbush | <botany> An Australian plant (Atriplex nummularia) of the Goosefoot family. Source: Websters Dictionary (01 Mar 1998) |
| salted plasma | The fluid portion of blood drawn from the vessels, which is prevented from coagulating by being drawn into a solution of sodium or magnesium sulfate. Synonym: salted serum. (05 Mar 2000) |
| salted serum | The fluid portion of blood drawn from the vessels, which is prevented from coagulating by being drawn into a solution of sodium or magnesium sulfate. Synonym: salted serum. (05 Mar 2000) |
| salter | One who makes, sells, or applies salt; one who salts meat or fish. Source: Websters Dictionary (01 Mar 1998) |
| Salter's incremental lines | Transverse line's sometimes seen in dentin, due to improper calcification. (05 Mar 2000) |
| Salter, Robert | <person> 20th century Canadian orthopedist. See: Salter-Harris classification of epiphysial plate injuries. (05 Mar 2000) |
| Salter, Sir Samuel | <person> English dentist, 1825-1897. See: Salter's incremental lines. (05 Mar 2000) |
| Salter-Harris classification of epiphysial plate injuries | The classification of epiphysial plate injuries into five groups (I to V), according to the pattern of damage to epiphysis, physis, and/or metaphysis; the classification correlates with different prognoses regarding the effects of the injury on subsequent growth and subsequent deformity of the epiphysis. (05 Mar 2000) |
| Salter-Harris fracture | A classification of fractures (1-5) that occur around or through an epiphyseal plate (growth plate). (27 Sep 1997) |