White blood cell, SEM
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White blood cell, SEM
White blood cell. Coloured scanning electron micrograph (SEM) of a lymphocyte cell, a type of white blood cell and part of the immune system. Lymphocytes are divided into either B-cells or T- cells. B-cells mature in bone marrow and are responsible for humoural immunity; they operate by recognising a specific site on the surface of a pathogen or foreign object (antigen), which they then bind to before producing antibodies to destroy that antigen. T-cells mature in the thymus and are involved in cell-mediated immunity, which does not rely on antibodies to fight antigens, but rather the activation of macrophages, NK-cells, cytotoxic T-lymphocytes and various cytokines
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6389263
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Defence False Colour Immune System Immunity Immunological Immunology Lymphocyte Response T Cell White Blood Cell False Coloured
EDITORS COMMENTS
This print showcases the intricate world of white blood cells, specifically a lymphocyte cell. Coloured with vibrant hues using scanning electron microscopy (SEM), this image provides a mesmerizing glimpse into the immune system's defense mechanisms. Lymphocytes, divided into B-cells and T-cells, play vital roles in safeguarding our bodies against harmful pathogens and foreign objects. B-cells mature in bone marrow and are responsible for humoral immunity. They possess the remarkable ability to recognize specific sites on antigens before producing antibodies that annihilate these invaders. On the other hand, T-cells mature in the thymus and contribute to cell-mediated immunity. Unlike B-cells' reliance on antibodies, T-cells activate various components such as macrophages, NK-cells, cytotoxic T-lymphocytes, and cytokines to combat antigens effectively. The false-colored SEM technique employed here enhances our understanding of these extraordinary cellular processes by highlighting their distinct features. This print serves as an invaluable resource for researchers delving into immunology or anyone fascinated by biology's intricacies. Science Photo Library has once again captured a momentous scientific marvel through this visually striking photograph. It reminds us of the awe-inspiring complexity within our own bodies while emphasizing how white blood cells tirelessly work together to protect us from harm.
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