Therefore, it isn't surprising that most of a human body's mass is oxygen. Among these heavy metals, a few have direct or indirect impact on the human body. Most of the human body is made up of water, H 2 O, with bone cells being comprised of 31% water and the lungs 83%. Sources. It is found in many foods and these include both animals as well as plant sources. Alkaline earth metals in the body play a huge role in health. It could play a role … Although nickel is generally evenly distributed in the body slightly larger amount is within the nucleic acid, especially in ribonucleic acid (RNA) and it is considered to affect the structure or function of the proteins associated with nucleic acids. Several heavy metals are found naturally in the earth crust and are exploited for various industrial and economic purposes. For instance, calcium is the fifth most abundant in the human body. You need calcium for strong bones. The core of the earth contains 8.5% nickel, deep-sea nodules 1.5%; meteorites have been found to contain 5–50% nickel (5). Course will be available soon. Thank you for your patience!If you need to access the course urgently, please contact courses@mendability.com for assistance or call +1 801-692-6830. Roles of nickel in the body: Plays a major role in helping the body absorb iron; helps prevent anemia; strengthens bones. Nickel deficiency can cause diseases such as diabetes, anemia, cirrhosis, uremia, renal failure, abnormal metabolism of … The human body requires minerals to convert food into energy, to prevent dehydration and to regulate the function of the heart and skeletal, muscular and nervous systems. Nickel is an essential element of the human body, and its content is extremely small in the human body. Metals have also been exploited to design therapeutically useful drugs against several diseases like cancer, arthritis, ulcer, etc. It is estimated that 98% of the body mass of man is made up of nine nonmetallic elements. Carbon, the basic unit for organic molecules, comes in second. Nickel is one of the trace mineral or micronutrient in our body since it is present in a very small amount in our body but it plays an important part in the overall health of the human body and in bodily processes. Some of these heavy metals such as copper, cobalt, iron, nickel, magnesium, molybdenum, chromium, selenium, manganese and zinc have functional roles which are essential for … The natural background levels of nickel in water are relatively low, in open ocean water 0.228– Arsenic is an element found in nature, and in man-made products, including some pesticides. Normally, the adult body contains about 10mg of nickel. 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