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肾脏是维持人体自身平衡的最重要的脏器。肾脏的生理功能包括调节体内水和水电解质(钠、钾、钙、磷酸、碳酸氢根、氯离子等)的平衡,排泄代谢产物,调节血压及分泌一些人体必需的物质。老年人的肾脏受衰老和疾病的双重影响。随着年龄增加,肾的结构和功能减退,自我稳定的功能被削弱,对身体内在环境变化
The kidney is the most important organ that maintains the body’s own balance. The physiological functions of the kidneys include the regulation of the balance of water and water electrolytes (sodium, potassium, calcium, phosphoric acid, bicarbonate, chloride, etc.), the excretion of metabolites, the regulation of blood pressure and the secretion of certain essential substances in the body. The elderly’s kidneys are affected by both aging and illness. With age, renal structure and function decline, self-stabilizing function is weakened, the body’s internal environment changes