An animal model is a living, non-human animal used during the research and investigation of human disease, for the purpose of better understanding the disease without the added risk of harming an actual human being during the process. The animal chosen will usually meet a determined taxonomic equivalency to humans, so as to react to disease or its treatment in a way that resembles human physiology as needed. Many drugs, treatments and cures for human diseases have been developed with the use of animal models. Animal models representing specific taxonomic groups in the research and study of developmental processes are also referred to as model organisms. There are three main types of animal models Homologous, Isomorphic and predictive. Homologous animals have the same causes, symptoms and treatment options as would humans who have the same disease. Isomorphic animals share the same symptoms and treatments. This is the principle research tool. Predictive models are when the animals strictly display only the treatment characteristics of a disease. This method is commonly used when researchers do not know the cause of a disease. It is also useful in screening.
Read more about Animal Model: Taxonomic Human Equivalence, Disease Models, Behavioral Sciences, Genetics, Criticisms
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