virtsanjohdinta
Virtsanjohdinta, also known as the ureter, is a muscular tube that carries urine from the kidney to the bladder. Humans have two ureters, one extending from each kidney. These tubes are approximately 25 to 30 centimeters long and about 5 millimeters in diameter. The ureters are lined with transitional epithelium, which can stretch to accommodate the flow of urine.
The wall of the ureter consists of three layers: an inner mucous membrane, a middle muscular layer,
Urine enters the ureter from the renal pelvis, the funnel-shaped structure at the top of the ureter
Problems with the ureters can arise, such as obstruction caused by kidney stones or strictures, which can