Diffuse Endocrine System — Endocrine Histology

Diffuse Endocrine System MCQs: practice questions

Sample Diffuse Endocrine System multiple-choice questions from Endocrine Histology.

1. What does the diffuse neuroendocrine system consist of?

   • A. Only pituitary cells
   • B. Only multicellular endocrine glands
   • C. Single endocrine cells distributed within epithelia and tissues
   • D. Pancreatic acinar cells
   • E. Only adrenal cortical cells

2. Where are many diffuse neuroendocrine cells located within respiratory epithelium?

   • A. Only in cartilage
   • B. Only in the submucosa
   • C. Only within the lumen
   • D. Pancreatic acinar cells
   • E. Near the basal region of the epithelium

3. Which type of secretory granules is characteristic of respiratory diffuse neuroendocrine cells?

   • A. Pancreatic acinar cells
   • B. Keratin granules
   • C. Small dense granules in the basal cytoplasm
   • D. Large zymogen granules at the apex
   • E. Mucinogen granules only

4. Which endocrine arrangement allows thyroid hormones to be stored outside the cells before release?

   • A. Parathyroid cord
   • B. Pituitary chromophil cord
   • C. Adrenal cortical cord
   • D. Follicle with colloid
   • E. Pancreatic acinar cells

5. Diffuse neuroendocrine cells may also produce which biogenic amine in respiratory epithelium?

   • A. Pancreatic acinar cells
   • B. Serotonin
   • C. Hemoglobin
   • D. Bilirubin
   • E. Thyroglobulin

6. Which organ contains endocrine cells arranged in follicles that store hormone precursor extracellularly?

7. A biopsy shows isolated hormone-producing cells scattered among epithelial cells rather than a discrete gland. What organization is this?

8. Which statement best summarizes endocrine histology in BRS?

9. A respiratory epithelial cell contains numerous small basal secretory granules and can release serotonin. Which cell type is most likely?

10. Which endocrine organ has a specialized portal vascular system connecting two capillary beds?

11. Which feature distinguishes endocrine glands from exocrine glands?

12. Which systems are specifically noted as containing diffuse neuroendocrine cells in their epithelia?

13. What is another historical name associated with diffuse neuroendocrine cells?

14. What is the principal route by which hormones from endocrine glands reach distant targets?

15. Which pancreatic structure is an example of a multicellular endocrine cell cluster?

16. Which cell type is an example of a diffuse endocrine cell in the respiratory tract?

17. How can endocrine products from diffuse neuroendocrine cells exert distant effects?

18. Which type of signaling can result when a diffuse neuroendocrine cell releases a peptide onto nearby cells?

19. Which endocrine tissue is organized into cortical zones and a central medulla?

20. Which tissue organization is characteristic of endocrine glands rather than exocrine glands?

21. Which endocrine tissue contains acidophils and basophils in cords adjacent to fenestrated capillaries?

22. Which statement about diffuse neuroendocrine cells is most accurate?

23. What type of capillary is abundant adjacent to many multicellular endocrine glands?

24. Which structural feature permits rapid exchange between endocrine cells and blood?

25. Which epithelial cell type is explicitly described by BRS as a diffuse neuroendocrine cell population in the respiratory tract?