Tinted TEM of flu virus in human trachea

Tinted TEM of flu virus in human trachea

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Credit: DR R. DOURMASHKIN/SCIENCE PHOTO LIBRARY.

Caption: Transmission electron micrograph (TEM), tinted yellow, of a section through a cell from the human trachea (windpipe), showing influenza viruses (tiny black dots) filtering through the cilia (fingerlike projections), which line the membrane surface. Cilia normally sweep the air passages free of dust & foreign particles, but become clogged & functionless when many viruses accumulate. With the sweepers incapacitated the gunge collects. Mitochondria, sites of cellular respiration, are seen within the cell as dark stained ovals. Tubular fragments in the cytoplasm are endoplasmic reticulum, sites of protein synthesis. Mag: X35,000 (10x8), X6140 (35mm)

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Keywords: biology, cilia, influenza virus, microbiology, mitochondria, tem trachea windpipe, transmission electron micrograph, virology, virus, viruses

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