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metal prints actin filament metal prints anatomy metal prints human body metal prints images metal prints mitochondria metal prints muscle metal prints muscles metal prints myosin filament metal prints sarcomere metal prints skeletal muscle metal prints striated muscle metal prints subjects metal prints tem metal prints

photographs actin filament photos anatomy photos human body photos images photos mitochondria photos muscle photos muscles photos myosin filament photos sarcomere photos skeletal muscle photos striated muscle photos subjects photos tem photos

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Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen. The fibrils run in parallel (from left to right) and between them runs sarcoplasmic reticulum (SR) that transmits nerve impulses to the fibrils. Here, the SR contains many mitochondria (brown). Within each fibril are contractile units called sarcomeres, separated by red lines. A sarcomere has protein filaments of myosin (pink) and actin (yellow) that slide over each other, thereby causing the whole muscle to contract. Skeletal muscle is responsible for voluntary muscle movement in the body. Magnification: x10,000 when printed at 10 centimetres wide.

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