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Metachronal rhythm
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Metachronal rhythm : ウィキペディア英語版
Metachronal rhythm

A metachronal rhythm or metachronal wave refers to wavy movements produced by the sequential action (as opposed to synchronized) of structures such as cilia, segments of worms or legs. These movements produce the appearance of a travelling wave.
A Mexican wave is a large scale example of a metachronal wave. This pattern is found widely in nature such as on the cilia of many aquatic organisms such as ctenophores, molluscs, ciliates as well as on the epithelial surfaces of many body organs. Individual cilia, when part of a metachronal wave being used for protist locomotion, individually beat in a pattern similar to the planar stroke of a flagellum. The difference is that the recovery stroke is at 90 degrees to the power stroke, so that the cilia avoid hitting each other.
Metachronal rhythms may be seen in the coordinated movements of the legs of millipedes and other multi-legged land invertebrates,〔Edward Aiello and Michael A Sleigh (1972) The metachronal wave of lateral cilia of ''Mytilus edulis''. J. Cell Biol. 54:493-506.〕〔Gueron, Shay, Konstantin Levit-Gurevich, Nadav Liron & Jacob J. Blum (1997) Cilia internal mechanism and metachronal coordination as the result of hydrodynamical coupling. Proc. Natl. Acad. Sci. USA 94:6001–6006 (PDF )〕 as well as in the coordinated movements of social insects.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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