AP BIOLOGY

Detailed explanation-1: -The urine the drains from each kidneys via a ureter, and is temporarily stored in the urinary bladder before it is passed out of the body through the urethra. The main structures of the urinary system are two kidneys, two ureters, a urinary bladder and a urethra.

Detailed explanation-2: -They are located just below the rib cage, one on each side of your spine. Healthy kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine. The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of your bladder.

Detailed explanation-3: -Most of us are born with 2 ureters, the tube that drains the urine from each kidney into the bladder. But some babies are born with 2 ureters that drain a single kidney. In these cases, one ureter drains the upper part of the kidney and the second ureter drains the lower part of the kidney.

Detailed explanation-4: -Most humans are born with two kidneys as the functional components of what is called the renal system, which also includes two ureters, a bladder and a urethra. The kidneys have many functions, including regulating blood pressure, producing red blood cells, activating vitamin D and producing some glucose.