| Russell traction | An improvement of Buck's extension that permits the resultant vector of the applied traction force to be changed, for fractures of the femur. (05 Mar 2000) |
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| Russell, William | <person> Scottish physician, 1852-1940. See: Russell bodies. (05 Mar 2000) |
| Russell, William James | <person> English chemist, 1830-1909. See: Russell effect. (05 Mar 2000) |
| hooked bundle of Russell | Fastigial efferent fibres that cross with the cerebellum and descend over the lateral surface of the superior cerebellar peduncle; these fibres largely terminate in the vestibular nuclei and the reticular formation of the pons and medulla. Synonym: hooked bundle of Russell, uncinate fasciculus of Russell. (05 Mar 2000) |
| Silver-Russell dwarfism | <syndrome> A disorder characterised by low birth weight, late closure of the anterior fontanel, bilateral bodily asymmetry, clinodactyly of the fifth fingers, triangular facies, and carp mouth; little useful genetic evidence. Synonym: Silver-Russell dwarfism. (05 Mar 2000) |
| Silver-Russell syndrome | <syndrome> A disorder characterised by low birth weight, late closure of the anterior fontanel, bilateral bodily asymmetry, clinodactyly of the fifth fingers, triangular facies, and carp mouth; little useful genetic evidence. Synonym: Silver-Russell dwarfism. (05 Mar 2000) |
| uncinate bundle of Russell | Fastigial efferent fibres that cross with the cerebellum and descend over the lateral surface of the superior cerebellar peduncle; these fibres largely terminate in the vestibular nuclei and the reticular formation of the pons and medulla. Synonym: hooked bundle of Russell, uncinate fasciculus of Russell. (05 Mar 2000) |
| uncinate fasciculus of Russell | Fastigial efferent fibres that cross with the cerebellum and descend over the lateral surface of the superior cerebellar peduncle; these fibres largely terminate in the vestibular nuclei and the reticular formation of the pons and medulla. Synonym: hooked bundle of Russell, uncinate fasciculus of Russell. (05 Mar 2000) |
| Leiter, Russell | <person> U.S. Psychologist, *1901. See: Leiter International Performance Scale. (05 Mar 2000) |
| abscopal effect | A reaction produced following irradiation but occurring outside the zone of actual radiation absorption. (05 Mar 2000) |
| additive effect | <biochemistry, chemistry> An additive effect is the overall biological effect two chemicals acting together and which is the simple sum of the effects of the chemicals acting independently. Compare: antagonism. (15 Jan 1998) |
| adverse effect | This is an abnormal or harmful effect to an organism caused by exposure to a chemical. It is indicated by some result such as death, a change in food or water consumption, altered body and organ weights, altered enzyme levels, or visible illness. An effect may be classed as adverse if it causes functional or anatomical damage, causes irreversible change in the homeostasis of the organism, or increases the susceptibility of the organism to other chemical or biological stress. A non-adverse effect will usually be reversed when the organism is no longer being exposed to the chemical. (09 Oct 1997) |
| Anrep effect | A small transient positive inotropic effect of abrupt increases of systolic aortic and left ventricular pressures related to recovery from transient subendocardial ischemia (e.g., cold pressor test). (05 Mar 2000) |
| antagonistic effect | This is the consequence of one chemical (or group of chemicals) counteracting the effects of another chemical, the opposing chemicals cancel out each other's effects. (09 Oct 1997) |
| Arias-Stella effect | Focal, unusual, decidual changes in endometrial epithelium, consisting of intraluminal budding, and nuclear enlargement and hyperchromatism with cytoplasmic swelling and vacuolation; may be associated with ectopic or uterine pregnancy. Synonym: Arias-Stella effect, Arias-Stella reaction. (05 Mar 2000) |