How are ureter urinary bladder and urethra related?

The ureters, urinary bladder, and urethra are all part of the urinary system, which is responsible for producing, storing, and expelling urine. Here's how these three components are related:

Ureters: The ureters are two muscular tubes that carry urine from the kidneys to the urinary bladder. They are located on either side of the body and extend from the renal pelvis (the funnel-shaped structure at the top of each kidney) to the urinary bladder. The ureters transport urine by means of peristaltic contractions, which are wavelike muscular movements that push the urine downward.

Urinary Bladder: The urinary bladder is a hollow, muscular organ that stores urine. It is located in the lower abdomen, just behind the pubic bone. The ureters enter the urinary bladder at the back, and the urethra exits from the bladder at the bottom. The urinary bladder gradually fills with urine from the kidneys until it reaches a certain capacity. When the bladder becomes full, it sends signals to the brain indicating the need to urinate.

Urethra: The urethra is a tube that carries urine from the urinary bladder to the outside of the body. It is located at the bottom of the bladder and passes through the pelvic floor muscles and the penis in males or the labia minora in females. The urethra allows urine to be expelled from the body during urination.

The coordinated functioning of the ureters, urinary bladder, and urethra is essential for the proper storage and elimination of urine. When any of these components are affected by disease or injury, it can lead to urinary problems, such as incontinence, urinary retention, or urinary tract infections.