click below
click below
Normal Size Small Size show me how
Urinary System
Major Structures, Functions, Diseases and Conditions
| Term | Definition |
|---|---|
| kidney | filters the blood to remove waste products, maintain electrolyte concentrations, and remove excess water to maintain the fluid volume within the body |
| renal pelvis | collects urine produced by the kidneys |
| urine | liquid waste products to be excreted |
| ureters | transports urine from the kidneys to the bladder |
| urinary bladder | stores urine until it is excreted |
| prostate | gland of the male reproductive system that surrounds the male urethra. Disorders of this gland can disrupt the flow of urine. |
| urinary tract | consists of two kidneys, two ureters, one bladder, and a urethra |
| renal cortex | outer region of the kidney, containing over one million nephrons |
| medulla | inner region of the kidney; containing most of the urine-collecting tubules. |
| nephron | functional unit of the kidney responsible for forming urine by the process of filtration |
| glomerulus | cluster of capillaries surrounded by a cup-shaped membrane called the Bowman's capsule |
| trigone | smooth triangular area on the inner surface of the bladder located between the openings of the ureters and urethra |
| urethral meatus | external opening of the urethra |
| renal failure | inability of one or both kidneys to preform their functions causing the bodies inability to replace damaged nephrons |
| edema | excessive fluid in body tissues |
| glomerulonephritis | AKA Bright's disease, a type of kidney disease caused by inflammation of the glomeruli that causes red blood cells and protiens to leak into the urine |
| polycystic kidney disease | genetic disorder characterized by the growth of numerous fluid-filled cysts in the kidneys |
| renal colic | acute pain in the kidney area that is caused by blockage during the passage of a kidney stone |
| cystolith | stone located within the urinary bladder |
| urinary tract infection (UTI) | infection affecting all or multiple parts of the urinary system |
| pyelitits | inflammation of the renal pelvis |
| benign prostatic hypertrophy (benign prostatic hyperplasia) (enlarged prostate) (prastatomegaly) | abnormal enlargement of the prostatic gland that occurs most often in men over age 50 |
| prostatism | condition of having symptoms resulting from compression or obstruction of the urethra due to benign prostatic hypertrophy |
| nocturnal enuresis | urinary incontinence during sleep |
| urinary retention | inability to control the voiding of urine |
| stress incontinence | inability to control the voiding of urine under physical stress such as running, sneezing, laughing, or coughing |