Renal work
The picture on the left shows a kidney which is partially bisected, so you can see the bark, MARV and kidney basin located centrally in kidney. To the right is a nefron, kidney smallest functional unit with a kapillærnøgle, glomerulus, surrounded by a double capsule as a result of the long kidney channel. The blood comes to kidneys through nyrearterierne to be filtered in nefronerne. Here leak fluid and waste, but also nutrients out of the capsule and then float through the kidney channel mo
On the way through the kidney channel resumes substances that are useful for the body, and much of the liquid. The revival happening in the kapillærnet surrounding the kidney channel. The blood then turns back to the bloodstream through the kidney veins, whereas the urine flowing to the kidney basin of urine through the leaders to end in the urinary bladder, where it empties out of the body.
Urinary bladder
 Urine is led by drops from the kidneys through urine leaders of the urinary bladder. Urinary bladder wall may be expanded and include a muskellag. Therefore, the urinary bladder extended when it is filled and pulled together when it is emptied. Urine discharged through the urethra by the ring of muscle, which closes for the urine in the bladder, relax. Urine prevented from floating back in the urine leaders because mouth of the bladder is equipped with flaps.
The man's urethral
 Urinary tube is in the man about 25 cm long. It resulted in the tip of the penis and urine as well as sperm discharged through the urethra.
The woman's urethral
 Urinary tube is in women only about 2.5 cm long. Urinary bladder and urethra ahead of the reproductive organs. Because of the urethra is so short and because the outcome in the vicinity of the vagina, is the tendency for urinary tract infections larger in women than in men.
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