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Red blood cells and platelets, SEM
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Red blood cells and platelets, SEM
Red blood cells and platelets. Coloured scanning electron micrograph (SEM) of human erythrocytes (red blood cells) and a platelet aggregate (orange). Platelets are fragments of white blood cells that under normal circumstances are small and biconcave in form. However, if there is a break in the surface of a blood vessel the platelets come into contact with molecules they are not used to and become activated. They become amorphous in form, with long projections (pseudopodia) that help them adhere to other cells and each other, forming a clot. Magnification: x3000 when printed at 10 centimetres wide
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STEVE GSCHMEISSNER/SCIENCE PHOTO
Media ID 18106607
© Science Photo Library
3 Dimensional Anatomical Anatomy Biological Biology Biconcave
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This print showcases the intricate world of our circulatory system. In this coloured scanning electron micrograph (SEM), we are granted a mesmerizing glimpse into the realm of red blood cells and platelets. The image reveals a cluster of human erythrocytes, or red blood cells, alongside an aggregate of platelets in a striking orange hue. Under normal circumstances, platelets exist as small and biconcave fragments derived from white blood cells. However, when there is damage to a blood vessel's surface, these remarkable cellular entities undergo activation. As they come into contact with unfamiliar molecules, their shape transforms dramatically. They assume an amorphous form with long projections known as pseudopodia that aid in adhering to other cells and each other. The result is the formation of a clot – nature's ingenious mechanism for preventing excessive bleeding and promoting wound healing. This SEM image captures the beauty within this vital process at an astonishing magnification level of x3000 when printed at 10 centimetres wide. Through this artwork by Steve Gschmeissner from Science Photo Library, we are reminded once again of the complexity and elegance inherent in our biological makeup. It serves as both a testament to scientific discovery and an artistic masterpiece that invites us to marvel at the wonders hidden within ourselves.
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