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泌尿系统由肾、输尿管、膀胱和尿道组成。肾是产生尿的器官,输尿管输送尿液到膀胱暂存。当膀胱内尿液积存到一定量时,即产生尿意,而后经尿道排出体外。机体在新陈代谢过程中产生许多废物和水,大多通过泌尿系统排出体外。肾除泌尿和排出体内的水份、废物外,还有调节体内液体总量、血浆离子成分、渗透压和酸碱度等作用,以保持机体内环境的相对隐定。一旦肾功能发生障碍,便能引起水盐代谢紊乱和酸碱平衡失调,严重危害人体,甚至危及生命。一、肾肾的位置和形态肾位于腹后壁前方、脊柱两
The urinary system consists of the kidney, ureter, bladder and urethra. Kidney is the organ that produces urine, urinary catheter delivery of urine to the bladder temporarily. When the bladder when the amount of urine accumulated to a certain amount, that is, urine generated, and then excreted through the urethra. The body produces many wastes and water during metabolism, mostly excreted through the urinary system. Kidney in addition to urinary and excretion of water, waste, but also regulate the total amount of liquid in the body, plasma ion composition, osmotic pressure and pH and so on, in order to maintain the body’s relatively stable environment. Once the renal dysfunction occurs, can cause water and salt metabolism and acid-base balance disorders, serious harm to the human body, and even life-threatening. First, the location and shape of kidney Kidney in front of the posterior abdominal wall, spine two