钙是人体内含量最多的元素之一。在成人体内约为1200克,其中99%与磷形成骨盐集中于骨骼和牙齿内,其余存在于血液、体液及软组织中。钙除可构成骨和牙齿外,还有降低毛细血管和细胞膜的通透性、防止渗出、控制炎症、激活酶类、维持神经肌肉兴奋性及心跳节律、参加凝血过程等许多重要作用。 Calcium is one of the most abundant elements in the human body. In the body about 1200 grams, of which 99% of the formation of bone salts with phosphorus concentrated in the bones and teeth, and the rest in the blood, body fluids and soft tissue. In addition to calcium and bones can constitute the composition of teeth, but also reduce capillary and cell membrane permeability, prevent leakage, control inflammation, activate enzymes, maintain neuromuscular excitability and heart rhythm, participate in the coagulation process and many other important role.