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ResearchPaper zugänglich unter
Spontaneous waves in muscle fibres
Saarland University
URN: urn:nbn:de:bsz:291-scidok-20703
URL: http://scidok.sulb.uni-saarland.de/volltexte/2009/2070/
Quelle:
(2007) New journal of physics. - 9. 2007, 417
pdf-Format:
Dokument 1.pdf (1.717 KB)
SWD-Schlagwörter:
Muskelkontraktion , Muskel
Freie Schlagwörter (Englisch):
Spontaneous oscillations, muscle
PACS - Klassifikation:
87.18.Hf , 87.19.R-
Institut:
Fachrichtung 7.1 - Theoretische Physik
DDC-Sachgruppe:
Physik
Dokumentart:
ResearchPaper
Sprache:
Englisch
Erstellungsjahr:
2007
Publikationsdatum:
02.02.2009
Kurzfassung auf Englisch:
Mechanical oscillations are important for many cellular processes, e.g. the beating of cilia and flagella or the sensation of sound by hair cells. These dynamic states originate from spontaneous oscillations of molecular motors. A particularly clear example of such oscillations has been observed in muscle fibers under non-physiological conditions. In that case, motor oscillations lead to contraction waves along the fiber. By a macroscopic analysis of muscle fiber dynamics we find that the spontaneous waves involve non-hydrodynamic modes. A simple microscopic model of sarcomere dynamics highlights mechanical aspects of the motor dynamics and fits with the experimental observations.
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