Name _________________________ Period ___________ Urinary System Test (20 pts.; 2 pts. per question) 1. 2. 3. 4. 5. 6. 7. 8. The vessel that enters the kidney is called the A. renal vein B. efferent arteriole C. glomerulus D. renal artery The organ that transports urine from the bladder to the outside is the A. nephron B. ureter C. collecting duct D. urethra The ____________ is half in the renal cortex and half in the renal medulla. A. nephron B. ureter C. kidney D. urethra The____________ transports urine from the kidney to the urinary bladder. A. nephron B. ureter C. collecting duct D. urethra The functional unit of the kidney is called a(n) ______________. A. glomerulus B. Bowman’s or glomerular capsule C. nephron D. urethra The blood vessel that drains the kidney is the ___________. A. renal artery B. glomerulus C. renal vein D. loop of Henle Which of the following indicates the parts of a nephron in the correct? sequence from beginning to end? (Note: Some parts may be missing) A. proximal tubule, ascending limb of loop of Henle, descending limb of loop of Henle, distal tubule B. distal tubule, ascending limb of loop of Henle, descending limb of loop of Henle, proximal tubule C. proximal tubule, descending limb of loop of Henle, ascending limb of loop of Henle, distal tubule D. descending limb of loop of Henle, ascending limb of loop of Henle, proximal tubule, distal tubule The ______________ arteriole goes away from the nephron and is a smaller diameter vessel. 9. 10. 11. 12. 13. 14. 15. 16. A. afferent B. efferent C. glomerulus D. renal Urine formation involves A. filtration. B. reabsorption. C. secretion. D. All of these. ___________ is where substances are taken back into the kidney tubules and then returned to the blood. A. Secretion B. Filtration C. Reabsorption D. Glomerular filtration The ball of capillaries located between the afferent and efferent arterioles is the A. glomerulus. B. nephron. C. Bowman's or glomerular capsule. D. renal artery. Reabsorption of glucose occurs primarily through the walls of the A. Bowman's or glomerular capsule. B. loop of Henle. C. proximal tubule. D. distal tubule. The largest quantity of hydrogen ions is secreted A. passively into the proximal tubule. B. passively from the distal tubule. C. actively into the proximal tubule. D. actively from the distal tubule. Which of the following is an abnormal constituent of urine? A. urea B. uric acid C. sodium ions D. hemoglobin ______________ is an abnormal constituent of urine associated with diabetes mellitus.. A. Urea B. Hemoglobin C. Creatinine D. Glucose The hormone ADH functions to promote water reabsorption through the wall of the A. distal tubule. B. proximal tubule. C. ascending limb of the loop of Henle. D. descending limb of the loop of Henle. 17. 18. 19. 20. Urine is 95% ____________. A. urea B. water C. creatinine D. uric acid Gout is a condition in which the plasma has an abnormally high concentration of A. uric acid. B. urea. C. calcium ions. D. amino acids. Alcohol inhibits the hormone ________ which results in increased urine production. A. Renin B. FSH C. LH D. ADH The ureter extends downward A. behind the parietal peritoneum and joins the urinary bladder from above. B. behind the parietal peritoneum and joins the urinary bladder from below. C. in front of the parietal peritoneum and joins the urinary bladder from above. D. in front of the parietal peritoneum and joins the urinary bladder from below.