ANATOMY

Detailed explanation-1: -These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys. If urine backs up, or is allowed to stand still, a kidney infection can develop.

Detailed explanation-2: -The urine flows from the kidneys through the ureters to the bladder. The urine is stored in the bladder until it leaves the body through the urethra.

Detailed explanation-3: -The urine travels from the kidneys to the bladder in two thin tubes called ureters. The ureters are about 8 to 10 inches long. Muscles in the ureter walls tighten and relax to force urine down and away from the kidneys. Small amounts of urine flow from the ureters into the bladder about every 10 to 15 seconds.

Detailed explanation-4: -What is a duplex kidney? In a normal urinary tract, each kidney is connected to one ureter (a tube that drains urine into the bladder). Children with a duplex kidney (also called a duplicated collecting system) have two ureters coming from a single kidney.

Detailed explanation-5: -A urinary catheter is a flexible tube used to empty the bladder and collect urine in a drainage bag. Urinary catheters are usually inserted by a doctor or nurse.