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Killer Cell and Cancer Cell
Macrophage ingesting pseudomonas
AIDS Virus Particles
AIDS virus. Colored transmission electron micrograph (TEM) of an AIDS virus (red/green) budding from the surface of a T-lymphocyte white blood cell. AIDS (acquired immune deficiency syndrome) is a fatal disease caused by HIV (human immunodeficiency virus). The virus particles attack T-lymphocytes, stealing their genetic machinery, thereby forcing them to produce more copies of the virus. The new virus particles then erupt from the cell to infect other T-lymphocytes. As these are a vital part of the immune system, the disease severely weakens immunity, making victims susceptible to seemingly harmless infections.
SEM: Medicine: Healing of a Wound: Lymphocytes and Macrophages: White blood cells on a thread that was surgically placed in the body. Two weeks after the operation, the thread was removed and immediately examined under the Electron Microscope. All of the areas of the thread that were situated within the body were densely populated with these immune cells. These cells recognized the thread as a foreign body and proceeded to dismantle it. Magnification = 3,200x
+ نوشته شده در سه شنبه ۱۴ مهر ۱۳۸۸ساعت 14:33 توسط حامد موحدزاده
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