black WIDOW
Lactrodectus mactans, also known as the southern black widow, is regarded as the original black widow spider. They are probably the most well known spider species because of its dangerous venom. This spider's bite is much feared because its venom is reported to be 15 times stronger than a rattlesnake's. In humans, bites produce muscle aches, nausea, and a paralysis of the diaphragm that can make breathing difficult; however, contrary to what most people believe, most who are bitten suffer no serious damage. But bites can be fatal; however, usually to small children, the elderly, or the sick.
digestive system
The black widow's prey consists of a variety of insects such as beetles, roaches, wood lice, crickets, millipedes, centipedes, and other spiders. When any prey gets entangled in its web, the black widow comes out of its hiding place, traps the prey by spinning an entanglement of web around it, and jabs it with its fangs to inject its venom. The spider uses its cheliceral teeth to mash up the wound it makes on it, infuses it with digestive enzymes, then carries it back to its hiding place before feeding on it.
The start- The spider first jabs it with its fangs and injects its venom. Then uses its cheliceral teeth to mash up the insect, and infuses it with digestive enzymes. After enzymes break down the tissue, the spider sucks up the liquid. Once it has eaten its prey, the liquid moves into the foregut through the esophagus and larynx, which leads into the stomach.
The stomach- The sucking stomach uses muscles and energy to act as a pump to push the liquid food through the spider. Since it is mostly digested outside the body, all the spider needs to do is absorb nutrients. The undigested waste is then excreted through the anus.
The start- The spider first jabs it with its fangs and injects its venom. Then uses its cheliceral teeth to mash up the insect, and infuses it with digestive enzymes. After enzymes break down the tissue, the spider sucks up the liquid. Once it has eaten its prey, the liquid moves into the foregut through the esophagus and larynx, which leads into the stomach.
The stomach- The sucking stomach uses muscles and energy to act as a pump to push the liquid food through the spider. Since it is mostly digested outside the body, all the spider needs to do is absorb nutrients. The undigested waste is then excreted through the anus.