Stay Well, Puppy!
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October 31, 2013 GlobalLab
Biologists from Germany and the US have photographed the process of tick bite in microscopic detail, and set how animals manage to gain a foothold in the skin of the victim. The research is published in the journal Proceedings of the Royal Society B. As victims, scientists have provided the tick Ixodes ricinus slumber mouse. The process was monitored by camera with macro lens. Itself mouthparts examined using a scanning microscope. It turned out that the penetration into the skin takes place in several stages. First two jagged chelicerae ("jaws" arachnids) alternately move back and forth, gradually going deeper in the skin. Then, after about 30 such movements tick simultaneously pulling them back. As a result of chelicerae are bent in a V-shaped fork and pierce the skin of the animal gipostomu - covered back pointy spikes "harpoon". After the process between Hypostoma and chelicerae formed channel on which and moves the bloodstream. This mechanism explains why the tick can be fixed very tightly in the skin of mammals. Double-pointed tool set allows mite burrows into the skin gradually, as gipostoma introduced only after snug chelicerae. It is known that an attempt to remove the spider, its mouthparts usually remains in the skin. Described by scientists mechanism may, however, differ from those used by other types of mites. It has been shown that some of them use a special cement material for fixing the skin of the host. Ticks, which became the subject of research, such substances are not present. Source www.animalpress.ru full article and photos of the process can be found on the website of the journal http://rspb.royalsocietypublishing.org/content/280/1773/20131758.full?sid=8f477279-441a-4f98-8dc7-bb0825df694d