| A | B |
| parts of urinary system | kidneys, bladder, ureters, urethra |
| *kidneys | remove chemical wastes and excess water from the blood to make urine |
| *ureters | tubes between kidneys and bladder |
| *bladder | holds urine until body eliminates it |
| sphincter muscle | controls release of urine |
| *urethra | tube which passes urine from bladder to outside the body |
| cyctitis | infected bladder |
| enlarged prostate gland | makes it difficult for older men to urinate |
| incontinence | inability to control flow of urine |
| peritonitis | condition in which urine leaks back into the body |
| dialysis | mechanical filtering of blood when kidneys don't work |
| kidney stones | chemical deposits in urine which form lumps and can be extremely painful |
| urologist | specialist who works with kidneys |
| *cystoscopy | mirrors and a light are passed through urethra into bladder for inspection |