Advanced Thyroid Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Which transcription factor is critical for thyroid follicular cell development?
- TTF-1
- PAX8
- HoxA3
- Nkx2.5
Q2. How does thyroid hormone exert its effects at the cellular level?
- By degrading mRNA
- By altering membrane channels
- By binding cell surface receptors
- By binding nuclear receptors
Q3. Where is thyroglobulin synthesized and stored?
- Inside mitochondria
- In the colloid
- In the Golgi apparatus
- In cytoplasm
Q4. What enzyme is responsible for iodine organification in the thyroid?
- 5-alpha reductase
- Thyroid peroxidase (TPO)
- Deiodinase
- Aromatase
Q5. Which pathway controls TSH secretion from the anterior pituitary?
- HPT axis
- JAK-STAT pathway
- HPA axis
- RAS pathway
Q6. Why does Graves’ disease cause hyperthyroidism?
- TSH deficiency
- Destruction of thyroid tissue
- Autoantibodies stimulate TSH receptors
- Iodine deficiency
Q7. Which nerve is most at risk during thyroid surgery?
- Phrenic nerve
- Accessory nerve
- Recurrent laryngeal nerve
- Vagus nerve
Q8. What is the most common type of thyroid cancer?
- Medullary carcinoma
- Papillary thyroid carcinoma
- Follicular carcinoma
- Anaplastic carcinoma
Q9. Which radioactive isotope is commonly used in thyroid scans?
- Gallium-67
- Iodine-131
- Iodine-123
- Technetium-99m
Q10. How does thyroid hormone influence fetal development?
- Important only for bone formation
- Important for muscle development
- Only needed after birth
- Crucial for brain and skeletal development