Intermediate Thyroid Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. How does thyroid hormone affect heart rate?

  • Slows conduction
  • No effect
  • Decreases heart rate
  • Increases heart rate

Q2. Where are the parafollicular (C) cells located?

  • Inside thyroid follicles
  • Between thyroid follicles
  • In parathyroid glands
  • In the adrenal gland

Q3. What hormone lowers blood calcium levels?

  • PTH
  • TSH
  • Calcitonin
  • Cortisol

Q4. Which artery provides the superior blood supply to the thyroid gland?

  • Superior thyroid artery
  • Facial artery
  • Subclavian artery
  • Inferior thyroid artery

Q5. What happens to thyroid hormone production in iodine deficiency?

  • Decreased hormone production
  • No change
  • Hormone degradation
  • Increased hormone production

Q6. Which structure drains venous blood from the thyroid gland?

  • Subclavian vein
  • Jugular vein
  • Thyroid veins
  • Vertebral vein

Q7. How does T3 differ from T4 in potency?

  • T4 is more potent
  • T3 is more potent
  • Both are equally potent
  • Neither has potency

Q8. Where does most conversion of T4 to T3 occur?

  • Thyroid gland
  • Peripheral tissues
  • Pituitary gland
  • Brainstem

Q9. Which autoimmune disease causes hyperthyroidism?

  • Graves' disease
  • Addison's disease
  • Cushing's syndrome
  • Hashimoto's thyroiditis

Q10. What classic symptom is associated with Graves’ disease?

  • Skin hyperpigmentation
  • Bradycardia
  • Exophthalmos
  • Hypotension
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