What is Urinary system?
The '''urinary system''' (the '''urinary tract''') is a [[organ system| system]] of [[Organ system| organs]] that makes [[urine]]/pee and takes it out of the body. Urine is watery waste of the body. Our body needs to collect this waste and get rid of it. Our body makes urine in two organs - the [[kidney]]s. To make urine, kidneys filter [[blood]] from [[blood vessel]]s. ==Organs of the urinary system== The urinary includes several organs: the [[kidney]]s, [[ureter]]s, the urinary [[bladder]], and [[urethra]]. [[File:Urinary System (Male).png|220px|thumb|left|The Human Male Urinary System]] [[File:Urinary System (Female).png|200px|thumb|right|The Human Female Urinary System]] ==How the urinary system works== The kidneys remove waste chemicals like [[urea]] from the blood. The blood containing chemical wastes enters the kidneys through the [[Artery|renal arteries]]. The blood is processed through the [[nephron]] to make urine. Urine is yellow liquid with waste chemicals in it. Then the urine goes down from the kidneys to the urinary [[bladder]]. It goes to it through two tubes - one tube from each kidney. The tubes are called [[Ureter|ureters]]. The urinary bladder is a soft container. It has [[Muscle|muscles]]. Its muscles can make it bigger or smaller. It becomes bigger when it is full of urine. At such times we feel it, and we have to pee. There is one tube that goes out of the urinary bladder. This tube lets the urine out of the body. This tube is the [[urethra]]. It is the only urinary organ different in [[Man|men]] and [[Woman|women]]. ===Women's urethra=== In women the urethra is shorter and wider inside. Its outer end is between a woman's legs. It opens on her outer sex organs ([[vulva]]). A woman's urethra serves only to pass urine. [[File:Vulva hymen miguelferig.png|thumb|Vulva diagram with [[urethra]] opening marked U; with C for [[clitoris]], and [[vagina]]l opening below with a V; VV - vestibule of the vagina; H - hymen, LM - one of the [[labia majora]]; Lm - [[labia minora]]]] ===Me