According to the research of spider venom, spider venom can be divided into neurovenom, mixed venom and hemolytic venom. I believe everyone has heard of the black widow spider. Yes, it is famous because it is the most poisonous and most harmful in the spider world, and it ranks high in the world of poisons. Let's learn about these three types of spider poison with Xiu Chongjun.

Black Widow

The neurotoxic spiders we know mainly include, black Widow spiders, Sydney funnel-web spiders, burrowing tarantulas, South American wanderer spiders, Brazilian neurovenom spiders, South African baboon spiders and more. The toxins of these neurotoxic spiders interfere with neuromuscular transmission. Whenever the pulse reaches the terminal, the fossa releases acetylcholine, which crosses the gap between the neuromuscular muscles and binds to the receptors on the muscle fibers, and then produces a series of chemical reactions that cause the muscles to contract.

Hemolytic venomous spiders mainly include brown recluse spiders and southern European tarantula venomous spiders. This type of spider is also known as necrotic spider venom, and the poisoned person manifests as local necrosis of the skin, and the combined reaction is hemolysis, exhaustion, and then death. When bitten by this type of spider, the local skin becomes necrotic, edema and accompanied by pain. The skin in the necrotic area will gradually turn purple, black, then dry, and peel off after a few days.

The representative of the mixed-type spider venom is the Japanese red salamander. This type of mixed-type toxin mainly has neurotoxic effects and also has necrotic effects. If the bite is severely poisoned, nausea, vomiting, loss of appetite, headache, shock, local skin damage, erythema and swelling will occur, and the danger is very high.