Thyroid Hormone and Cardiovascular Effects
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Thyroid Hormone and Cardiovascular Effects

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Questions and Answers

How does thyroid hormone influence cardiac function?

  • By lowering blood pressure
  • By direct and indirect actions (correct)
  • By decreasing heart rate
  • By increasing cholesterol levels in the blood

    • Which of the following is a prominent clinical consequence of thyroid disease?

  • Liver cirrhosis
  • Lung fibrosis
  • Cardiovascular manifestations (correct)
  • Hypoglycemia

    • What is the primary cause of Cretinism?

  • High cortisol levels
  • Overactive thyroid gland
  • Thyroid hormone deficiency during fetal development (correct)
  • Excessive iodine intake

    • How does iodine deficiency affect the thyroid gland?

    <p>It results in goiter formation</p> Signup and view all the answers

    What are the cardiovascular effects of thyroid hormones?

    <p>Direct and indirect actions on cardiac function</p> Signup and view all the answers

    What is the general effect of thyroid hormones on metabolism?

    <p>Increase in carbohydrate, fat, and protein metabolism</p> Signup and view all the answers

    Which of the following is NOT regulated by thyroid hormones in most tissues?

    <p>Vitamin metabolism</p> Signup and view all the answers

    How do thyroid hormones affect fat metabolism?

    <p>Increase fat breakdown</p> Signup and view all the answers

    Which condition is associated with an iodine deficiency?

    <p>Cretinism</p> Signup and view all the answers

    What are the cardiovascular effects of thyroid hormones?

    <p>Increased heart rate and blood pressure</p> Signup and view all the answers

    In hypothyroidism, which of the following cardiovascular effects is most likely to occur?

    <p>Bradycardia</p> Signup and view all the answers

    What effect does thyroid hormone have on the numbers of β receptors?

    <p>Increases the numbers of β receptors</p> Signup and view all the answers

    Which of the following is a common effect of hypothyroidism on the heart?

    <p>Decreased cardiac contractility</p> Signup and view all the answers

    What happens to the amplification of the β-receptor signal in the presence of thyroid hormone?

    <p>It increases</p> Signup and view all the answers

    Which condition is characterized by decreased pulse pressure due to its impact on cardiovascular function?

    <p>Cretinism</p> Signup and view all the answers

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