Trace metal
Trace metal
Trace metals (pronunciation: /treɪs ˈmɛt(ə)lz/), also known as trace elements, are types of metals that are required in minute quantities by living organisms for normal growth and development.
Etymology
The term "trace metal" is derived from the fact that these elements are present in extremely small quantities (traces) in organisms. The word "trace" comes from the Old French word 'tracer', which means 'to track'. The term "metal" comes from the Greek word 'metallon', which means 'mine, quarry, metal'.
Related Terms
- Bioavailability: The degree and rate at which a substance is absorbed into a living system or is made available at the site of physiological activity.
- Homeostasis: The tendency of a system, especially the physiological system of higher animals, to maintain internal stability.
- Toxicity: The degree to which a substance can harm humans or animals.
- Chelation: The process by which a molecule encircles and binds to a metal ion.
- Micronutrient: A nutrient that is required in minute amounts for the normal growth and development of living organisms.
Trace Metals in Medicine
Trace metals play a crucial role in medicine as they are essential for the normal functioning of the human body. They are involved in various biological processes such as enzyme catalysis, hormone production, and maintaining the structural integrity of proteins and nucleic acids. Some of the important trace metals include Iron (Fe), Zinc (Zn), Copper (Cu), Manganese (Mn), Selenium (Se), and Molybdenum (Mo).
However, an imbalance in the levels of trace metals can lead to various health issues. For instance, excess iron can lead to hemochromatosis, while a deficiency can cause anemia. Similarly, an excess of copper can lead to Wilson's disease, while a deficiency can cause Menkes disease.
See Also
External links
- Medical encyclopedia article on Trace metal
- Wikipedia's article - Trace metal
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