myofibril /myo·fi·bril/ (-fi´bril) muscle fibril; one of the slender threads of a muscle fiber, composed of numerous myofilaments. myofi´brillar
myofibril
my·o·fi·bril (m   -f brl, -f brl)n. One of the threadlike longitudinal fibrils occurring in a skeletal or cardiac muscle fiber. Also called sarcostyle. |
myofibril
[-fī′bril]
Etymology: Gk, mys + L, fibrilla, small fiber
a slender striated strand within skeletal and cardiac muscle fibers and composed of bundles of myofilaments. Myofibrils occur in groups of branching threads running parallel to the cellular long axis of the fiber.
myofibril
a muscle fibril, one of the slender threads of a muscle fiber, composed of numerous myofilaments.
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