一、酸碱平衡的概念人的机体调节体内酸碱物质的含量和比例、维持体内酸碱度(pH值)在恒定范围内的过程叫做酸碱平衡。人体可通过一系列的调节作用,最后将多余的酸性或碱性物质排出体外,达到酸碱平衡。正常人血浆的pH值总是维持在7.35～ First, the concept of acid-base balance Human body to regulate the body acid-base content and the ratio of the body to maintain pH (pH) in the constant range of the process is called acid-base balance. The body through a series of regulatory role, and finally the excess acidic or alkaline substances excreted to achieve acid-base balance. Normal human plasma pH is always maintained at 7.35 ~