Anamaria Cristea

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Anamaria Cristea
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Calcitonin  Calcium (Ca2+) plays a significant role in both nervous conduction and muscle contraction. It is also necessary for coagulation (clotting) of blood. The blood calcium level is regulated in part by calcitonin, a hormone secreted by the thyroid gland when the blood calcium level rises (Fig. 10.7).

Thyroid and Parathyroid Glands. Function of the Thyroid and Parathyroid Glands. Effects of Thyroid Hormones. Regulation of Blood Calcium Level