Adrenal Physiology — Endocrine & Metabolic Physiology

Adrenal Physiology MCQs: practice questions

Sample Adrenal Physiology multiple-choice questions from Endocrine & Metabolic Physiology.

1. Cortisol increases vascular responsiveness to:

   • A. PTH
   • B. Insulin
   • C. Catecholamines
   • D. Calcitonin
   • E. ADH only

2. Cortisol decreases peripheral glucose uptake by:

   • A. Stimulating GLUT4 translocation
   • B. Antagonizing insulin action
   • C. Increasing insulin sensitivity
   • D. Increasing glycogen breakdown only
   • E. Activating insulin receptors

3. Aldosterone is not primarily controlled by ACTH because its main regulators are:

   • A. TSH and TRH
   • B. CRH and ACTH
   • C. Angiotensin II and K+
   • D. GH and IGF-1
   • E. PTH and vitamin D

4. Cortisol is produced mainly in the:

   • A. Zona reticularis
   • B. Zona glomerulosa
   • C. Zona fasciculata
   • D. Adrenal medulla
   • E. Renal cortex

5. Cushing syndrome is characterized by:

   • A. Deficient cortisol
   • B. Excess cortisol
   • C. Excess aldosterone only
   • D. Deficient catecholamines
   • E. Excess thyroid hormone

6. A patient with excess cortisol would be expected to have:

7. Primary adrenal insufficiency can cause hyperkalemia because of reduced:

8. Cortisol increases blood glucose primarily by:

9. Adrenal androgens are produced mainly in the:

10. Aldosterone acts primarily on:

11. Preganglionic sympathetic fibers stimulate adrenal medullary cells using:

12. Adrenal Physiology 30 questions • Five related options • One best answer • Explanation 1. Aldosterone is produced in the adrenal cortex's:

13. Cortisol exerts negative feedback on:

14. Adrenal androgens include:

15. Hyperkalemia directly stimulates:

16. Aldosterone increases secretion of:

17. Cortisol promotes lipolysis particularly in:

18. A major metabolic effect of cortisol on protein is:

19. Aldosterone excess tends to cause:

20. A decrease in blood volume increases aldosterone secretion through:

21. Aldosterone secretion is regulated most strongly by:

22. ACTH primarily stimulates secretion of:

23. Cortisol secretion is controlled by:

24. Catecholamines are synthesized from:

25. A patient with primary adrenal insufficiency is expected to have:

26. The adrenal medulla secretes primarily:

27. Administration of an ACE inhibitor tends to:

28. Epinephrine is synthesized from:

29. Aldosterone increases renal Na+ reabsorption by increasing:

30. The adrenal medulla is functionally analogous to a: