一、酸硷平衡的基本概念机体内环境需要一定的酸硷度,才能维持组织细胞的生理活动。因此,保持酸硷度的相对稳定是生理活动的必要条件。正常人血液的pH值维持在7.35～7.45之间,平均为7.4。所谓酸硷平衡是指机体在代谢过程中,不断地产生酸和硷性物质,但体内含有的酸和硷总是保持着一定的比例,此种使体液pH值维持在恒定范围内的调 First, the basic concept of acid-base balance The body environment requires a certain degree of acidity in order to maintain the physiological activity of tissue cells. Therefore, to maintain the relative stability of pH is a necessary condition for physiological activity. Normal blood pH maintained at between 7.35 ~ 7.45, with an average of 7.4. The so-called acid-base balance refers to the body in the metabolic process, continue to produce acid and alkaline substances, but the body contains acid and alkali always maintain a certain ratio, the body fluid pH to maintain a constant range of tune