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Envenomation is the process by which venom is injected by the bite or sting of a venomous animal. [ 1 ] Many kinds of animals, including mammals (e.g., the northern short-tailed shrew , Blarina brevicauda ), reptiles (e.g., the king cobra ), [ 2 ] spiders (e.g., black widows ), [ 3 ] insects (e.g., wasps ), and fish (e.g., stone fish ) employ ...
The pathophysiology of a spider bite is due to the effect of its venom.A spider envenomation occurs whenever a spider injects venom into the skin. Not all spider bites inject venom – a dry bite, and the amount of venom injected can vary based on the type of spider and the circumstances of the encounter.
In addition, incidents of opiliones biting people are rare, and no reported bites by these species have had any lasting effects. The term "daddy-long-legs" also can refer to the similar-looking cellar spider. This species (a true spider) can bite humans, but its venom is not known to have any effects beyond mild discomfort at the site of the bite.
A spider envenomation occurs whenever a spider injects venom into the skin. Not all spider bites involve injection of venom, and the amount of venom injected can vary based on the type of spider and the circumstances of the encounter. The mechanical injury from a spider bite is not a serious concern for humans.
What they look like: Chiggers, a type of small mite, typically leave clusters of bites that are often very itchy. In many cases, chigger bites appear as small, red and itchy bumps. Sometimes, they ...
Although the reputation of these spiders is notorious and their venom does affect humans, only mature females are capable of envenomation in humans; their chelicerae—the hollow, needle-like mouthparts that inject venom—are approximately 1 mm, or .04 in. in length, making them long enough to inject venom into humans, unlike those of the much ...
Envenomation of a human by a scorpion may affect the sympathetic or parasympathetic systems depending on the species of scorpion. Some of the more severe side effects include respiratory distress syndrome, pulmonary edema, cardiac dysfunction, impaired hemostasis, pancreatitis, and multiple organ failure.
Image credits: humans_of_capitalism The demanding schedules that capitalism requires, Rise and Shine Money argues, leave us burnt out, depleted, in poor health, and emotionally dysregulated. As a ...