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钙除参与骨的代谢外,尚和神经传递、肌肉收缩、酶的活性、激素的释放以及血液的凝固过程有关。它是通过甲状旁腺激素、维生素D 以及降钙素等对骨骼、肾脏及肠道三个组织的作用来实施的。正常血清钙浓度能维持于4.5～5.5毫克当量/升(9.0～11.0毫克/100毫升)的生理范围。近年来对这方面的知识取得较多的进展,本文就对此及高血钙症作扼要的介绍和讨论。钙的分布、吸收和排泄体钙的99%存在于骨组织中,因之骨被誉为钙库。体钙主要来自食物。成人需钙每日约
In addition to calcium involved in bone metabolism, but also and nerve transfer, muscle contraction, enzyme activity, hormone release and blood coagulation process. It is through the parathyroid hormone, vitamin D and calcitonin on bone, kidney and intestinal three organizations to implement the role. Normal serum calcium concentration can be maintained at a physiological range of 4.5-5.5 mg eq / L (9.0-11.0 mg / 100 mL). In recent years, more progress has been made in this aspect of knowledge. This article briefly introduces and discusses this and hypercalcemia. Calcium distribution, absorption and excretion of 99% of calcium present in bone tissue, because of bone known as the calcium library. Calcium is mainly from food. Adults need calcium daily about