Poisons That Affect Synapses Essay

573 WordsJan 27, 20153 Pages
How poisons affect the nervous system. (completed by Kieran high) First, what is a poison? A poison is much like a toxin but they can be split a part, based on the where they come from and purity. There are mainly two types of poisons, biological and physical poisons. Biological poisons are made in living organism such as spiders and snakes, they are absorbed into the victim tissues by been injected with fangs, open words or sprayed into victims sensitive areas such as the eyes. Physical poisons are normally very pure substances, such as mercury and arsenic poisoning. Poisons work in disturbing central nervous system, blocking neurones and destroying enzymes or interrupting major processes that keep the body alive. For example arsenic, stops the production of ATP by “blocking and competing with molecules that form ATP” leaving the body without enough energy to maintain its normal routine. In this report I will be exploring two major poisons; a biological poison known as Laxcotoxin produced by the Black widow spider, commonly found in the United states and south America, and physical poison, well known a mercury. First I shall be looking at the black widow spider bite, which has venom which targets the central nervous system in particular the neurones and synapses. The black widow spider is a large black spider with a clear red marking on the back. They are commonly found in the United states and south America. The females are the most aggressive, showing in their size and behaviour around other spiders and species, as they are very territorial creatures. One of the main reason they are well known and fear is because of their bite. Known to be the most toxic as it is made up of “neurotoxins polypeptides that affect the nervous system” it is called “Laxcotoxin” The bite itself will feel like a pin prick, however within the first couple of hours you will

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