Complete Exam Guide Subject-wise practice platform
Endocrine and Reproductive Physiology

Pituitary and Thyroid Physiology Practice Questions

40 free Pituitary and Thyroid Physiology practice questions for the Physiology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

Start Practice Quiz

Questions

All Pituitary and Thyroid Physiology questions

40 questions
  1. Q1. Which pituitary hormone is essential for postnatal growth and metabolism?
  2. Q2. Which thyroid hormone is present in the highest concentration in the circulation?
  3. Q3. Which pituitary hormone directly stimulates thyroid hormone synthesis and release?
  4. Q4. Which hormone inhibits thyroid-stimulating hormone release from the pituitary?
  5. Q5. Which pituitary hormone is primarily responsible for milk ejection?
  6. Q6. Which thyroid hormone has the highest biological activity at the cellular level?
  7. Q7. Which pituitary hormone stimulates cortisol secretion from the adrenal cortex?
  8. Q8. Which cell type in the thyroid gland secretes calcitonin?
  9. Q9. Which hormone increases basal metabolic rate?
  10. Q10. Which pituitary hormone is secreted in response to suckling and promotes milk synthesis?
  11. Q11. Which thyroid-related protein transports the majority of thyroid hormones in blood?
  12. Q12. Which pituitary hormone deficiency in childhood leads to dwarfism?
  13. Q13. Which hormone mediates negative feedback on both the pituitary and hypothalamus in the thyroid axis?
  14. Q14. Which pituitary lobe releases antidiuretic hormone?
  15. Q15. Which thyroid hormone effect explains heat intolerance in hyperthyroidism?
  16. Q16. Which pituitary hormone regulates gonadal function in both males and females?
  17. Q17. Which process in the thyroid gland requires iodine?
  18. Q18. Which pituitary hormone excess causes gigantism when occurring before epiphyseal closure?
  19. Q19. Which thyroid hormone action is mediated by nuclear receptors?
  20. Q20. Which pituitary hormone is tonically inhibited by dopamine?
  21. Q21. By what mechanism do hypothalamic releasing hormones, such as TRH, reach the anterior pituitary gland?
  22. Q22. A patient presents with low serum T4 and high serum TSH. Which of the following is the most likely location of the physiological defect?
  23. Q23. The transport of iodide from the blood into the thyroid follicular cell occurs via the Sodium-Iodide Symporter (NIS). This is an example of which transport pro…
  24. Q24. What is the 'Wolff-Chaikoff effect' in thyroid physiology?
  25. Q25. Most of the growth-promoting effects of Growth Hormone (GH) are mediated by which peripheral signaling molecule?
  26. Q26. Which of the following would occur if the hypothalamic-pituitary stalk were surgically severed?
  27. Q27. In peripheral tissues, the enzyme 5'-deiodinase is responsible for which critical step in thyroid hormone metabolism?
  28. Q28. Central Diabetes Insipidus is characterized by a failure to secrete which hormone, and where is this hormone synthesized?
  29. Q29. Thyroid Stimulating Hormone (TSH) exerts its effects on follicular cells primarily through which secondary messenger system?
  30. Q30. Reverse T3 (rT3) is typically elevated in patients with 'Sick Euthyroid Syndrome.' How is rT3 produced?
  31. Q31. Which protein provides the tyrosine residues necessary for the synthesis of T3 and T4 within the thyroid follicle?
  32. Q32. What is the physiological effect of Growth Hormone (GH) on blood glucose levels?
  33. Q33. During the 'Ferguson reflex,' stretching of the cervix leads to a positive feedback loop involving which pituitary hormone?
  34. Q34. In Graves' Disease, hyperthyroidism is caused by which of the following?
  35. Q35. Which of the following hormones inhibits the release of Growth Hormone (GH) from the anterior pituitary?
  36. Q36. Where are the receptors for ADH (V2 receptors) located that mediate its primary antidiuretic effect?
  37. Q37. Thyroid peroxidase (TPO) is a multifunctional enzyme. Which of the following is NOT a role of TPO?
  38. Q38. A patient has a large pituitary macroadenoma. Besides endocrine changes, they report losing their peripheral vision. This is due to compression of which struct…
  39. Q39. In a healthy individual, which of the following is the strongest stimulus for the release of ADH?
  40. Q40. Congenital hypothyroidism (Cretinism) leads to profound intellectual disability and stunted growth because thyroid hormones are essential for: