Toxicology.docx

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Department
Animal Science
Course
ANS 282
Professor
Dr.Balander
Semester
Fall

Description
Toxicology 09/13/2013 Toxicology­study of poisons. Poison­a chemical that causes harmful effects in a living organism. Any chemical can cause harmful effects if the organism is exposed to enough of it. The most toxic of  chemicals may not cause any harm if the organism is exposed to only a small quantity. Dose­Response Relationship Local Effects­certain chemicals can cause injury at the site of first contact. Systemic Effects­most chemicals affect one or few organs after the chemical has been absorbed and  distributed to other parts of the body. Reversible Effects­effects of chemical disappear following cessation of exposure to it. Irreversible Effects­effects will persist or progress after exposure is discontinued. Immediate Effects­develop shortly after a single exposure. Delayed Effects­occur after a lapse of some time. Morphological Effects­generally irreversible gross and microscopic changes in the structure of the tissues. Functional Effects­usually represent reversible changes in the functions of target organs. Biochemical Effects­although all toxic effects are associated with biochemical… Xenobiotic­a chemical that is exogenous to the normal metabolism of the animal or a foreign compound. Toxin­a chemical from a plant or animal. Toxicant­non­biological chemical. Analytical Toxicology­concerned with identification and quantification of toxicants. Clinical Toxicology­focuses on allev
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