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White blood cell, SEM
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White blood cell, SEM
White blood cell, coloured scanning electron micrograph (SEM). White blood cells are part of the immune system, which protects the body against invading organisms. Macrophage white blood cells engulf such organisms, which include bacteria and protozoa. Lymphocyte white blood cells release antibodies, chemicals that can weaken the invaders, or alert macrophages to their presence. Magnification: x9000 when printed 10cm wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6446685
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Defence Immune Immunology Leucocyte Leukocyte System White Blood Cell Cells
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