MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY
Light micrograph of a section through human skeletal (striated) muscle. The striated banding- pattern of the muscle fibres can be seen. Skeletal muscle (also called voluntary muscle) provides intentional or conscious movements in the body: of the head, trunk, limbs, and organs such as the eye and tongue. This muscle tissue consists of longi- tudinally orientated fibres, running here from left to right. Cross-striations are the arrange- ment of proteins (actin and myosin) which cause the fibres to contract. Along the junction of the fibres (blue) can be seen multiple nuclei (fuzzy pink); each cylindrical fibre is a single muscle cell. Magnification: x245 at 35mm size.
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