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肾素—血管紧张素—醛固酮系统对维持血压和内环境稳定起着十分重要的作用，血管紧张素Ⅱ是该系统中起主要生理活性的成份。测定人血浆中血管
The renin-angiotensin-aldosterone system plays a very important role in maintaining blood pressure and stabilizing the internal environment. Angiotensin II plays a major physiological role in this system. Determination of human blood vessels