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问:肾脏的血液循环对尿的生成起什么作用? 答:肾脏的血液循环与其泌尿机能有密切的关系。尿成分来源于血液,为保证排泄机能的正常进行,所以肾脏的血液供应量多,并有特殊的分布,且受很多因素的调节。 1.肾脏血液供应的特点 (1)肾的血液供应丰富正常成人安静时每分钟约肓1,200ml血液流过两侧肾脏,相当于心输出量的1/5～1/4。这样丰富的血液供应是生成尿的物质基础。
Q: What is the role of kidney blood circulation in the formation of urine? A: The kidney’s blood circulation and urinary function are closely related. Urine components from the blood, in order to ensure the normal excretion function, so the kidney blood supply and more, and has a special distribution, and is subject to many factors. 1. Features of Kidney Blood Supply (1) Abundant Blood Supply to Kidney About 1,200 ml of blood flow through both kidneys per minute at normal quiescence, which is equivalent to 1/5 ~ 1/4 of cardiac output. Such a rich blood supply is the material basis for the formation of urine.