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钙是体内含量最大的无机物,为维持人体神经、肌肉、骨骼系统、细胞膜和毛细血管通透性正常功能所必须。钙离子是许多酶促反应的重要激活剂,对许多生理过程是必需的,如神经冲动传递、平滑肌和骨骼肌的收缩、肾功能、呼吸和血液凝固等。
Calcium is the largest amount of inorganic matter in the body necessary to maintain normal function in the nervous, muscular, skeletal systems, membranes and capillary permeability of the human body. Calcium is an important activator of many enzymatic reactions and is required for many physiological processes such as nerve impulse transmission, contraction of smooth muscle and skeletal muscle, renal function, respiration and blood clotting.