LYCOS RETRIEVER 
Spiders: Venom
built 647 days ago
Spiders have two pairs of mouthparts, the chelicerae and the pedipalps. Each chelicera has two segments. The first segment is large and sometimes works like a jaw in crushing prey. The second segment is fang-like and has a small opening near its end for injecting venom into the prey.
Source:
Black Widow spiders are not usually deadly, especially to adults, because they inject only a small amount of venom. Bites can range from mild to quite painful; anyone bitten should seek medical attention. An attempt should be made to catch the spider for identification.
Source:
If dangerous spiders are present in your area, be mindful when moving cardboard boxes and other such objects that may have become the shelter of a venomous spider. There is no need to be fearful; just do not grab a spider.
Source:
MORE ABOUT
Venom