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Heart muscle fibres, SEM
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Heart muscle fibres, SEM
Heart muscle fibres. Coloured scanning electron micrograph (SEM) of cardiac muscle fibrils (pink) from a healthy heart. The muscle fibrils, or myofibrils, are crossed by transverse tubules (vertical lines). These tubules mark the division of the myofibrils into contractile units (sarcomeres). Cardiac muscle is under subconscious control and continuously contracts to pump blood around the body without tiring. Magnification: x800 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6313575
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Cardiac Cardio Vascular Cardiology Colored Continuous Contractile Unit False Colour Fibre Fibril Fibrils Muscles Muscular Myofibril Myofibrils Organelle Organelles Sarcomere Sarcomeres Tissue Transverse Tubule Tubules Units Z Lines False Coloured
EDITORS COMMENTS
This print showcases the intricate beauty of heart muscle fibres, providing a glimpse into the remarkable complexity of our cardiovascular system. In this coloured scanning electron micrograph (SEM), we are presented with a mesmerizing view of cardiac muscle fibrils in a healthy heart. The pink-hued muscle fibrils, also known as myofibrils, are intersected by vertical lines representing transverse tubules. These tubules serve as markers that divide the myofibrils into contractile units called sarcomeres. It is within these sarcomeres that the magic happens – they enable cardiac muscles to continuously contract and pump blood throughout our bodies tirelessly. Cardiac muscle operates under subconscious control, ensuring our hearts beat rhythmically without us even having to think about it. This image reminds us of the incredible power and resilience of our hearts, which work ceaselessly to keep us alive and thriving. With a magnification level of x800 when printed 10 centimetres wide, this photograph allows us to appreciate the microscopic wonders hidden within our bodies. Its vibrant colors and detailed composition make it not only scientifically informative but also visually stunning. As we gaze upon this image from Science Photo Library's collection, we are reminded of the delicate balance between biology and artistry found in nature itself – an awe-inspiring testament to life's intricacies.
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