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Coloured SEM of skeletal (striated) muscle fibres
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Coloured SEM of skeletal (striated) muscle fibres
Skeletal muscle. Coloured scanning electron micrograph (SEM) of skeletal muscle fibres. Muscle fibres are extremely long, cylindrical cells. Running the length of each fibre are thin threads called myofibrils. The myofibrils contain the proteins actin and myosin, which slide over each other to allow the muscle to contract. These proteins give the fibres a banded appearance, and skeletal muscle is also called striated muscle due to this. It is also called voluntary muscle, as it is under direct conscious control. Magnification unknown
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6420330
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Fibres Magnified Image Microscopic Photos Muscles Skeletal Skeletal Muscle Striated Striated Muscle Subjects Voluntary
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This print from Science Photo Library showcases the intricate beauty of skeletal muscle fibres. In this coloured scanning electron micrograph (SEM), we are granted a close-up view of these remarkable structures that make up our musculoskeletal system. Skeletal muscle fibres, as depicted in this image, appear as long and cylindrical cells. What makes them truly fascinating is the presence of thin threads known as myofibrils running along their entire length. These myofibrils contain actin and myosin proteins, which work together to enable muscle contraction. The distinct banded appearance seen in the fibres is a result of these proteins sliding over each other during muscular activity. This unique characteristic has earned skeletal muscle its alternative name - striated muscle. Furthermore, what sets skeletal muscles apart is their voluntary nature; they are under direct conscious control. This means that every movement we make consciously involves the activation and coordination of these incredible fibres. Magnification details for this SEM image remain unknown but do not diminish its impact on our understanding of human anatomy. It serves as a reminder of the complexity and elegance found within our own bodies. Science Photo Library has once again provided us with an awe-inspiring glimpse into the microscopic world through this stunning photograph print.
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