Urinary System MCQ Quiz | Microanatomy

Welcome to the Microanatomy quiz on the Urinary System, specifically designed for MBBS students. This quiz will test your understanding of the intricate histological structures that make up the kidney and urinary tract. You will encounter 25 multiple-choice questions covering key topics such as the renal corpuscle, the detailed segments of the nephron, the juxtaglomerular apparatus, and the unique epithelial linings of the ureters and bladder. This assessment is an excellent tool for self-evaluation and revision before your professional exams. After submitting your answers, you will see your score and a detailed review of correct and incorrect responses. You can also download a complete list of all questions with their correct answers in a PDF format for future study.

1. The visceral layer of Bowman’s capsule is composed of specialized cells called:

2. The juxtaglomerular (JG) cells are modified smooth muscle cells located in the wall of the afferent arteriole that secrete:

3. Which part of the nephron has a prominent brush border (microvilli) and is highly eosinophilic due to abundant mitochondria?

4. The macula densa is a group of specialized cells located in the:

5. What type of epithelium lines the urinary bladder and ureters, allowing for distension?

6. The glomerular filtration barrier is composed of all the following EXCEPT:

7. Which cells in the collecting duct are responsive to Antidiuretic Hormone (ADH) for water reabsorption?

8. The thin descending and ascending limbs of the loop of Henle are lined by:

9. What is the primary function of mesangial cells within the glomerulus?

10. The vasa recta are specialized capillaries that arise from the:

11. A key histological feature distinguishing the ureter from other tubular structures is its:

12. The renal corpuscle consists of the:

13. Which cells are responsible for acid-base balance in the collecting ducts by secreting H+ or HCO3-?

14. On a histological slide, how can you differentiate the DCT from the PCT?

15. The parietal layer of Bowman’s capsule is composed of what type of epithelium?

16. The final concentration of urine is determined primarily in the:

17. Which structure is NOT part of the juxtaglomerular apparatus (JGA)?

18. The large, dome-shaped superficial cells of the urothelium are called:

19. In which region of the kidney are the renal corpuscles located?

20. The primary site for glucose and amino acid reabsorption in the nephron is the:

21. Erythropoietin, a hormone that stimulates red blood cell production, is mainly produced by:

22. The thick ascending limb of the loop of Henle is lined with what type of epithelium?

23. The terminal portions of the collecting ducts, known as papillary ducts or ducts of Bellini, empty into the:

24. What is the main characteristic of cortical nephrons compared to juxtamedullary nephrons?

25. The fenestrations of the glomerular capillary endothelium are unique because they lack: