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SEM of immune system phagocyte ingesting bacteria

SEM of immune system phagocyte ingesting bacteria


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SEM of immune system phagocyte ingesting bacteria

Phagocytic immune response. Scanning electron micrograph of a polymorphonuclear white blood cell (leucocyte) attacking Bacillus cereus bacteria. The polymorphonuclear leucocyte or neutrophil is attaching to and engulfing the Bacillus cells (large, rod-shaped at left). The leucocyte will then use enzymes to digest the bacteria. This process of engulfment and digestion is known as phagocytosis. Highly mobile, phagocytic cells migrate to areas of tissue damage. However, their necessary enzymes are quickly depleted by phagocytic activity so they degenerate. Defunct cells accumulate in pus. Magnification x25, 000 at 10x8 inch size

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6421232

© DR KARI LOUNATMAA/SCIENCE PHOTO LIBRARY

Bacteria Defence Immune Immune Response Immunology Leucocyte Leukocyte Neutrophil Phagocytic Phagocytosis System White Blood Cell Cells


EDITORS COMMENTS
This print showcases the incredible power of our immune system in action. In this scanning electron micrograph, we witness a polymorphonuclear white blood cell, also known as a neutrophil, engaging in a vital defense mechanism called phagocytosis. The scene unfolds with the neutrophil firmly attaching itself to Bacillus cereus bacteria, which are large and rod-shaped. With remarkable precision and agility, the neutrophil proceeds to engulf these harmful invaders. Once inside its protective membrane, the neutrophil employs specialized enzymes to break down and digest the bacteria. Phagocytosis is an essential process that allows highly mobile phagocytic cells like neutrophils to migrate towards areas of tissue damage or infection within our body. However, their heroic efforts come at a cost – their necessary enzymes become quickly depleted due to intense phagocytic activity, leading them to degenerate over time. As these defunct cells accumulate in pus, they serve as evidence of our immune system's unwavering dedication to safeguarding our well-being. This mesmerizing image was captured at a magnification of 25,000 times its original size and beautifully illustrates the intricate anatomy and functionality of our immune system. In this photograph from Science Photo Library's collection on immunology and human anatomy, we are reminded once again of the extraordinary complexity that lies within us all – an intricate defense network tirelessly working behind-the-scenes to protect us from harm caused by invading bacteria like Bacillus cereus

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