- thick filament
- thick filament n a myofilament of one of the two types making up myofibrils that is 10 to 12 nanometers (100 to 120 angstroms) in width and is composed of the protein myosin compare THIN FILAMENT
Medical dictionary. 2011.
thick filament
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thick filaments — Bipolar myosin II filaments (12 14nm diameter, 1.6 m m long) found in striated muscle. Myosin filaments elsewhere are often referred to as ‘thick filaments’, although their length may be considerably less. The myosin heads project from the thick… … Dictionary of molecular biology
filament — 1. SYN: filamentum. 2. In bacteriology, a fine threadlike form, unsegmented or segmented without constrictions. [L. filamentum, fr. filum, a thread] actin f. one of the contractile elements in muscular fibers and other cells; in skeletal muscle,… … Medical dictionary
Sliding filament model — Ratchet mechanism redirects here (it is the name given in some textbooks to the sliding filament mechanism). For the mechanical device, see Ratchet (device) The sliding filament theory describes a process used by muscles to contract. It was… … Wikipedia
thin filament — n a myofilament of the one of the two types making up myofibrils that is about 5 nanometers (50 angstroms) in width and is composed chiefly of the protein actin compare THICK FILAMENT … Medical dictionary
myosin filament — one of the thick contractile myofilaments in a myofibril, composed mainly of myosin; each myosin filament is surrounded by six actin filaments … Medical dictionary
sliding filament mechanism — the process by which muscle contracts: the thick and thin filaments slide past each other while maintaining a constant length as the result of mechanical forces generated by interaction of cross bridges (myosin heads) with the actin filaments.… … Medical dictionary
sliding filament model — Generally accepted model for the way in which contraction occurs in the sarcomere of striated muscle, by the sliding of the thick filaments relative to the thin filaments … Dictionary of molecular biology
muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… … Universalium
Titin — The three dimensional structure of a type I module from titin. PDB rendering based on 1bpv … Wikipedia
Sarcomere — A band redirects here. For other uses, see A band. Sarcomere Image of sarcomere Latin sarcomerum Code TH … Wikipedia
