51.3 MB (2.0 MB compressed)
4957 x 3614 pixels
41.9 x 30.5 cm ⏐ 16.5 x 12.0 in (300dpi)
KAGE MIKROFOTOGRAFIE GBR / SCIENCE PHOTO LIBRARY KAGE MIKROFOTOGRAFIE GBR / SCIENCE PHOTO LIBRARY
False colour scanning electron micrograph (SEM) of human macrophages impaled on strands of fibrinogen. One erythrocyte (red blood cell) is distinguished at centre by its smooth surface & biconcave shape. Macrophages belong in the immune system & are responsible for clearing the body of foreign invaders such as bacteria & viruses. This they do by engulfing & digesting the invader in a process called phagocytosis. Magnification: X 600 at 35mm size, X 1200 at 6x7cm size.
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