• muscle contractions
  • This can affect the body in several ways, including causing painful abdominal cramps The atracotoxins of Australian funnel-web spiders work by opening sodium channels, causing excessive neural activity including strange sensations (paresthesias), muscle contractions, unstable blood pressure (hypertension or hypotension). (wikipedia.org)
  • symptoms
  • Confidence in the diagnosis is graded as putative, presumptive, probable or documented based on whether the spider is endemic to the area, whether the lesion, symptoms and course are typical, and of course if the spider is positively identified by a qualified authority. (vesalius.com)
  • However, without a spider, either through inability to communicate or unawareness, the diagnosis may be missed as symptoms overlap with a variety of other serious clinical syndromes such as tetanus or acute abdomen. (wikipedia.org)
  • human
  • At high doses (in the lab) the venom also deforms human red blood cells, an effect common to the venom of bees, the blue-ringed octopus, and a range of snakes. (wikipedia.org)
  • Many spiders do not have mouthparts capable of penetrating human skin. (wikipedia.org)
  • unusual
  • The venom directly affects nerves leading to the unusual feature of severe sweating, which may be regional (e.g. one leg). (wikipedia.org)
  • wound
  • My family physician knew exactly what it was and immediately deadened the area and lanced the wound to drain the pus and venom. (emedicinehealth.com)