Urinary System Quiz ChallengeOnline version Test your knowledge about the urinary system with this fun quiz! by Andrea Arroyave Rincón 1 What is the primary function of the kidneys? a To regulate body temperature. b To store urine. c To produce hormones only. d To filter blood and produce urine. 2 What is the name of the tube that carries urine from the kidneys to the bladder? a Renal artery. b Urethra. c Ureter. d Bladder neck. 3 Which part of the urinary system stores urine until excretion? a Urethra. b Kidneys. c Ureters. d Bladder. 4 What is the functional unit of the kidney? a Renal pelvis. b Collecting duct. c Glomerulus. d Nephron. 5 What is the role of the urethra? a To store urine. b To filter blood. c To transport blood. d To carry urine from the bladder to the outside of the body. 6 Which hormone regulates water balance in the body? a Aldosterone. b Insulin. c Cortisol. d Antidiuretic hormone (ADH). 7 What is the term for the process of urine formation? a Urine synthesis. b Reabsorption. c Filtration. d Excretion. 8 What is the primary waste product found in urine? a Urea. b Glucose. c Protein. d Lipids. 9 What condition is characterized by the presence of excess protein in urine? a Proteinuria. b Oliguria. c Hematuria. d Anuria. 10 Which structure is responsible for filtering blood in the kidneys? a Nephron. b Renal cortex. c Glomerulus. d Ureter.