Answer:
Urinary system and Circulatory system
Explanation:
Blood flows to the kidney through the renal artery until the blood reaches the glomerulus, an area of the nephron where the blood is filtered and where the waste to be expelled and the substances that are still useful for the body are separated. Once the urine is filtered, there are substances that go back to the blood because they are still very useful to the body. From the kidney, urine passes to the renal pelvis, and then to the ureter, a very long tube that connects the kidney to the bladder Subsequently, the bladder stores the urine to be eliminated by another final section tube, called the urethra
