| saltatory | Leaping or dancing; having the power of, or used in, leaping or dancing. <biology> Saltatory evolution, an affection in which pressure of the foot on a floor causes the patient to spring into the air, so as to make repeated involuntary motions of hopping and jumping. Origin: L. Saltatorius. See Saltant, and cf. Saltire. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| 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) |
| saltatory conduction |
the rapid passage of a potential from node (of Ranvier) to node of a myelinated nerve fiber, rather than along the full length of the membrane.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
|
|---|---|
| saltatory |
(feet) formed for leaping, the thighs being dilated. See ambulatory, cursory.
Ãâó: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
|
| saltatory |
The type of conduction along a myelinated axon where the leading edge of the action potential 'jumps' from node to node, increasing the speed of axonal conduction.
Ãâó: www.ualberta.ca/~neuro/OnlineIntro/glossary.htm
|
| saltatory |
A saltatory motion is a stop start motion. The movements associated with many cellular processes are saltatory which is consistent with wave-driving.
Ãâó: freespace.virgin.net/john.hewitt1/pg_gloss.htm
|
| saltatory c. |
any chorea, such as Sydenham's chorea, that involves involuntary jumping or dancing movements. See also saltatory spasm, under spasm.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|