This page has moved. Click here to view. Over 100,000 species of spiders are found worldwide.
All spiders are carnivorous and secure live prey either by hunting or trapping spider bites, stings.
Physicians need to be able to recognize the signs and symptoms of medically significant venomous spider bites, because an inaccurate or missed diagnosis may lead to significant morbidity and mortality. Since the spider responsible for the bite is often not seen or recovered for identification, knowledge of physical descriptions as well as Widow spider Widow spiders are found throughout temperate and tropical areas of the world. Classic black widow females are much larger than males. This results in an excess of various neurotransmitters in the synaptic junctions, causing catecholamine release at adrenergic nerve endings and Treatment Treatment goals are pain relief and reversal of neurotoxin action. Intravenous calcium gluconate has been widely used for pain relief.