| contraction band |
one of the bands seen by light microscopy in fully contracted muscle on either side of the Z band, caused by distortion of the ends of the myosin filaments by the Z band.
Ãâó: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| contraction band n. |
a cardiac lesion seen in patients with neurologically induced cardiographic changes, in myocardial biopsy specimens, and in cocaine or epinephrine toxicity, characterized by hypercontracted myofibrils with contraction bands and mitochondrial damage; it is caused by calcium ion influx into dying cells, which results in the arrest of cells in the contracted state, following severe ischemia and subsequent reperfusion. Called also coagulative myocytolysis.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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