giant cell (lat. Sarcoptes scabieiei) is one of the few representatives of the Arachnida class that can be found in humans as parasites. These longest mononucleated microscopic animals are known as Sarcoptic mites. These mites have a body length of 0.2 to 0.5 mm.,
Depending on the habitat, they live for a relatively short time: in water for only a few hours, adults without food for several minutes. In the absence of food, females are able to remain viable for several months. Males, on the other hand, adapt to long-term fasting as much as possible, since they do not produce eggs, thereby suppressing the gonadotropic response to nutrition. The development and biology of life are described in more than 80 monographs. A giant cell has an average size of 400 microns in diameter. Its body is not covered with a shell, like spiders.