Almost all of the 40,000 species of spiders are poisonous. However, the biting tools of most species are too short to penetrate the human skin. Serious systemic reactions occur most frequently after bite of the following ways: Brown recluse spiders, brown recluse spider True Widows (Latrodectus): Black Widow (Latrodectus sp), Brown Widow (Latrodectus geometricus]) Brown recluse spiders are found primarily in the Midwest and in the southern states of the USA. spent by clothing or luggage -gelegentlich but may also occur – except the coastal regions and the states on the Canadian border, where they are. Real widows are everywhere in the US. The brown widow has spread recently from Florida in all Gulf Coast States. Other toxic species such as tarantulas (Pamphobeteus) and sucked. Banana spiders (Cupiennius) and comb spiders (Phoneutria) were in the United States originally not indigenous but were imported with goods or other materials there or as a new kind of pets kept. Spider bites cause in the US <3 deaths per year, usually in children. Only a few spider venoms have been studied in detail. Most important are toxins that cause necrosis (Loxosceles species, spiders and Brown house spinning), and toxins, which have a highly neurotoxic effect (eg. B. in the genuine widows). Sphingomyelinase D is the protein component, which appears to be responsible for most cases of tissue destruction and hemolysis by brown spider venom. The most toxic component of the venom of the Real widow is a protein, ?-latrotoxin, affecting neuromuscular transmission. Symptoms and complaints spiders: The bite by Loxosceles species is the most common in the US spider bite. The bite itself may be initially painless. However, in all these spider bites developed within 30-60 min a strong pain, which includes the entire limb. In the field of bite site the erythema is formed; there is bruising and severe itching. In some cases, even a generalized itching occurs that affects the whole body. In the center of the bite site, a small bubble that is often surrounded by an irregular ekchymotischen area, which can as the center of a target look like forms. The skin lesion may look like a pyoderma gangrenosum look. The central bubble grows, fills with blood, tears, and leaves an ulcer. A black scab forms over the ulcer and is finally repelled. Bite of the brown recluse spider Image courtesy of Thomas Arnold, M.D. var model = {thumbnailUrl: '/-/media/manual/professional/images/brown_recluse_bite_high_de.jpg?la=de&thn=0&mw=350' imageUrl: '/-/media/manual/professional/images/brown_recluse_bite_high_de.jpg?la = en & thn = 0 ', title:' bite of the brown recluse spider ', description:' u003Ca id = "v37898205 " class = ""anchor "" u003e u003c / a u003e u003cdiv class = ""para "" u003e u003cp u003eDieses photo shows a necrotic lesion on the inner thigh

Health Life Media Team

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