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Question
If sodium iodide is injected with radioactive iodine, then in which one of the following most of the radioactive iodine would be incorporated?
If sodium iodide is injected with radioactive iodine, then in which one of the following most of the radioactive iodine would be incorporated?
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Solution
The correct option is B Thyroid
The thyroid releases three hormones into the bloodstream. Two of these hormones, called as thyroxine (T4) and triiodothyronine (T3), increase the body's metabolic rate. Thyroid hormones make cells use more energy. By controlling how much energy our cells use, thyroid hormones also help to regulate our body temperature. Heat is released when energy is used, increasing our body temperature. In order to make T3 and T4, the thyroid gland needs iodine, a substance found in the food we eat. T4 is called this because it contains four atoms of iodine. T3 contains three atoms of iodine. In the cells and tissues of the body, most T4 is converted to T3. T3 is the more active hormone; it influences the activity of all the cells and tissues of your body. The other hormone that the thyroid makes is called calcitonin. This helps to control the levels of calcium and phosphorus in the blood. These minerals are needed, among other things, to keep bones strong and healthy. Cartilage, lymph nodes and parathyroid will not incorporate iodine.
Therefore, the correct answer is option B.
The thyroid releases three hormones into the bloodstream. Two of these hormones, called as thyroxine (T4) and triiodothyronine (T3), increase the body's metabolic rate. Thyroid hormones make cells use more energy. By controlling how much energy our cells use, thyroid hormones also help to regulate our body temperature. Heat is released when energy is used, increasing our body temperature. In order to make T3 and T4, the thyroid gland needs iodine, a substance found in the food we eat. T4 is called this because it contains four atoms of iodine. T3 contains three atoms of iodine. In the cells and tissues of the body, most T4 is converted to T3. T3 is the more active hormone; it influences the activity of all the cells and tissues of your body. The other hormone that the thyroid makes is called calcitonin. This helps to control the levels of calcium and phosphorus in the blood. These minerals are needed, among other things, to keep bones strong and healthy. Cartilage, lymph nodes and parathyroid will not incorporate iodine.
Therefore, the correct answer is option B.
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