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(接上期)第七讲补钙与钙制剂的选择一、前言钙是构成人体的基本成分之一,对人体的生长发育,疾病与健康,衰老与死亡起着非常重要的作用,在人体的组成成分中,除碳、氢、氧、氮以外,钙位列第5。成人平均含钙总量约为1~1.25千克。人体内的钙99.3%分布于骨(包括牙)组织中,其余约0.1%分布于细胞外液,0.6%存在于细胞内。钙是人体的必需宏量元素,除形成骨架之外,还具
(Continued) Session VII Calcium and Calcium Selection I. Introduction Calcium is one of the basic components of the human body, which plays a very important role in the growth and development, disease and health, aging and death of the human body. Composition, in addition to carbon, hydrogen, oxygen, nitrogen, calcium ranked fifth. The average adult calcium content of about 1 ~ 1.25 kg. 99.3% of the calcium in the human body is distributed in the bone (including teeth) tissues, the remaining about 0.1% is distributed in the extracellular fluid, and 0.6% is present in the cells. Calcium is the necessary macro elements of the human body, in addition to the formation of the skeleton, but also with