传统的概念认为,肺只是机体的呼吸器官,近来,人们已逐步认识到肺亦是一个代谢性器官,除了进行气体交换外,还调节某些血管活性物质,如胺、多肽、激素、药物等。肺的这些机能在于调节血浆的成分,被称为肺的代谢机能。缓激肽、腺核苷酸、血清素、去甲肾上腺素及前列腺素E、F是经肺清除的;血管紧张素Ⅰ是经过肺而被激活 The traditional concept that the lungs are only the body’s respiratory organs, recently, people have gradually realized that the lungs are also a metabolic organ, in addition to gas exchange, but also regulate certain vasoactive substances, such as amines, peptides, hormones, drugs and so on. These functions of the lungs regulate the composition of the plasma and are called the metabolic function of the lungs. Bradykinin, adenonucleotides, serotonin, norepinephrine and prostaglandin E, F are cleared by the lungs; angiotensin I is activated via the lung