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50.6 MB (5.7 MB compressed)
3685 x 4798 pixels
31.2 x 40.6 cm ⏐ 12.3 x 16.0 in (300dpi)
MICROSCAPE / SCIENCE PHOTO LIBRARY MICROSCAPE / SCIENCE PHOTO LIBRARY
Skeletal muscle. Transmission electron micrograph (TEM) of a section through a skeletal muscle fibre. Muscle fibres are filled with highly ordered myofibrils consisting of repeating units of contractile protein filaments. Each unit of contraction is called a sarcomere (rectangular) and is the basic cellular component for muscle contraction. Magnification: x4,000 when printed 10 centimetres tall.
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