In humans the ureter transports urine from the?

In humans, the ureters transport urine from the kidneys to the urinary bladder. The ureters are two muscular tubes, about 25-30 cm long, that connect the kidneys to the bladder. They carry urine by peristalsis, a series of involuntary muscle contractions, from the kidneys to the bladder. The muscles of the ureters contract and relax in a coordinated manner, propelling the urine downward towards the bladder. When the urine reaches the bladder, it is stored until it is released through the urethra during urination.