Source:http://linkedlifedata.com/resource/umls/id/C0027075
MSH: The long cylindrical contractile organelles of STRIATED MUSCLE cells composed of ACTIN FILAMENTS; MYOSIN filaments; and other proteins organized in arrays of repeating units called SARCOMERES .,CSP: highly organized bundles of actin, myosins, and other proteins in the cytoplasm of skeletal and cardiac muscle cells that contract by a sliding filament mechanism; they are composed of numerous myofilaments.,GO: The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism. [ISBN:0815316194]