Before leaving your body, urine travels through the urinary tract. The urinary tract is a pathway that includes the: kidneys: two bean-shaped organs that filter waste from the blood and produce urine. ureters: two thin tubes that take pee from the kidney to the bladder.

The ureter is a tubular structure which starts from the kidney and ends in the the urinary bladder .It's work is to carry urine formed in the kidney to the bladder for another temporary storage

The urine from the kidneys passes to the urinary bladder through the ureter.

- The urinary system is responsible for the production, storage, and elimination of urine from the body. The kidneys, ureters, urinary bladder, and urethra are the main organs involved in this process.

- The kidneys are bean-shaped organs located on either side of the spine, below the ribcage. They filter waste products, excess water, and toxins from the blood to produce urine.

- After the urine is formed in the kidneys, it moves through tiny tubular structures called nephrons. These nephrons are responsible for the filtration and reabsorption of various substances.

- From the nephrons, the urine flows into larger tubular structures called renal pelvis. The renal pelvis collects urine from multiple nephrons and funnels it into the ureter.

- The ureters are muscular tubes that connect the kidneys to the urinary bladder. There is one ureter connected to each kidney. The ureters have a peristaltic wave-like motion that helps propel urine from the kidneys to the bladder.

- The urine travels through the ureters due to the pressure created by the contraction of the smooth muscles in the ureter walls. This movement is coordinated by the autonomic nervous system.

- The ureters enter the urinary bladder at an angle, preventing backflow of urine into the kidneys. The bladder acts as a temporary storage reservoir for urine.

- When the bladder is full, it sends signals to the brain indicating the need for urination. The urine leaves the bladder through another muscular tube called the urethra.

- The urethra is shorter in females and longer in males. In females, it acts solely as a passage for urine. In males, it serves a dual purpose, as it also carries semen during ejaculation.

- Finally, the urine is expelled from the body through the urethra during the process of urination.

In summary, the urine from the kidneys passes to the urinary bladder through the ureter, which is a muscular tube connecting the kidneys to the bladder.