Calcium in Bones
Different hormones regulate calcium level in the bone matrix, which hormones and specify the one that is more important if any. Do they work together or antagonist toward each other?
Indeed, most calcium in one's body is located in one thing…bones. About 99% of all calcium in one's body is in the bones. There are three main hormones that are involved in the regulation of calcium in the body. Those hormones are parathyroid, vitamin D and calcitonin. Calcium movement in the blood is regulated by to main organs, one's gut and one's kidneys. Vitamin D comes from food and lack of it can lead to weakening of bones. Calcitonin is produced by the thyroid is used to lower blood calcium levels. By contrast, parathyroid is produced by the thyroid as well and does the opposite. So to answer the question, the latter two of those two hormones do act in an antagonistic fashion in that one reduces blood calcium levels and one does the opposite. Parathyroid tells the bones to break down calcium from the blood and into the blood stream while calcitonin directly attacks the osteoclast function caused by the other hormone. How these two hormones play off of each other varies...
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