Calcium Homeostasis Essay

1074 Words Feb 11th, 2013 5 Pages
“Calcium Homeostasis”
Kayla Smith
Anatomy and Physiology I
BSC 1085C Ref# 82458

Calcium plays a very significant role in our bodies. Approximately 99 percent of the calcium in our bodies is stored in the teeth and bones. Calcium generates about two percent of our total body weight. Calcium is crucial in bone formation, keeping strong bones and teeth and is known for helping to prevent osteoporosis. Although calcium is mostly thought about in the bones and teeth, it also plays important roles throughout the body. The amount of calcium outside the bones and teeth may be small in comparison to what is inside the bones and teeth, but is very useful in many functions in the body. Calcium is required in functions such as the contraction
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Calcitriol moves to the nucleus of these cells and boost the role of proteins that carry calcium from inside the small intestine to the blood. Calcitonin does the opposite of the parathyroid hormone and vitamin D. While the parathyroid gland and vitamin D raise the calcium levels, calcitonin decreases it. Calcitonin is a hormone secreted by the C cell of the thyroid gland that lowers blood calcium levels by inhibiting bone resorption. (Lingohr-Smith, 2011). Having high and low levels of calcium in the body affects the body differently. Hypercalcemia is the medical term for high blood calcium. Having too much calcium in the body can lead to an increased risk of kidney stones, constipation, nausea, and high blood pressure. People with hypercalcemia may also have stomach, muscle and joint pain. Very severe hypercalcemia can cause symptoms of brain dysfunction such as confusion, emotional disturbances, delirium, hallucinations, and coma. Irregularly low calcium levels in the blood are known as hypocalcaemia. Your bones and teeth will begin to deteriorate because your body takes the calcium that is stored in your bones to carry out the functions that are dependent on calcium. Hypocalcaemia can cause fragile bones, brittle nails and can cause frequent muscle cramps. It can also cause joint pain, and put you at risk for bone disease as you age. Low calcium levels can put you at higher risks for high blood pressure or hypertension as well as poor
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