Thyroid Hormones Functions Quiz
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Questions and Answers

What is the primary function of secreting thyroid hormones?

  • Maintaining optimal metabolism in tissues (correct)
  • Regulating blood pressure
  • Improving memory functions
  • Enhancing muscle growth

Which body system is directly impacted by the secretion of thyroid hormones?

  • Digestive system
  • Endocrine system (correct)
  • Immune system
  • Nervous system

How does maintaining optimal metabolism in tissues benefit the body?

  • Causes excessive fatigue
  • Supports normal organ function (correct)
  • Promotes rapid weight gain
  • Triggers inflammation

What happens if the level of thyroid hormones secreted is inadequate?

<p>Decreased metabolism (B)</p> Signup and view all the answers

How do thyroid hormones impact O₂ consumption in the body?

<p>Increase O₂ consumption (A)</p> Signup and view all the answers

Which of the following is a consequence of reduced thyroid hormone secretion?

<p>Sluggish metabolism (D)</p> Signup and view all the answers

What role do thyroid hormones play in regulating metabolism?

<p>Regulate both lipid and carbohydrate metabolism (B)</p> Signup and view all the answers

What is the primary effect of thyroid hormones on mentation?

<p>Enhance cognitive function (C)</p> Signup and view all the answers

How can thyroid hormones influence body mass?

<p>Increase body mass (D)</p> Signup and view all the answers

In what way do thyroid hormones affect lipid and carbohydrate metabolism?

<p>Regulate both lipid and carbohydrate metabolism (C)</p> Signup and view all the answers

What are the common symptoms of hypothyroidism?

<p>Poor resistance to cold and mental and physical slowing (C)</p> Signup and view all the answers

Which hormone regulates TSH?

<p>TRH (A)</p> Signup and view all the answers

In hypothyroidism, what is the main symptom related to temperature?

<p>Cold intolerance (C)</p> Signup and view all the answers

What type of feedback control is involved in regulating thyroid function?

<p>Direct inhibition by T4 (D)</p> Signup and view all the answers

What is the role of TSH in controlling thyroid function?

<p>Directly stimulates thyroid hormone production (C)</p> Signup and view all the answers

What is the consequence of the absence or hypofunction of the thyroid during fetal and neonatal life?

<p>Severe mental retardation (B)</p> Signup and view all the answers

In adults, what symptoms are typically associated with hypothyroidism?

<p>Mental and physical slowing (A)</p> Signup and view all the answers

Which of the following statements about the thyroid's importance for life is accurate?

<p>The thyroid is not essential for life but crucial during fetal and neonatal life (B)</p> Signup and view all the answers

What is a common symptom of hypothyroidism in adults related to body temperature regulation?

<p>Poor resistance to cold (B)</p> Signup and view all the answers

Which hormone secreted by the thyroid gland has the effect of lowering blood calcium levels?

<p>Calcitonin (A)</p> Signup and view all the answers

What is the primary function of calcitonin in the body?

<p>Lower blood calcium levels (A)</p> Signup and view all the answers

How does hypothyroidism affect cognitive function in adults?

<p>Leads to mental slowing (A)</p> Signup and view all the answers

In terms of blood calcium regulation, which hormone opposes the action of calcitonin?

<p>Parathyroid Hormone (PTH) (C)</p> Signup and view all the answers

What is the medical condition characterized by excess secretion of calcitonin leading to low blood calcium levels called?

<p>Hypocalcemia (A)</p> Signup and view all the answers

Which of the following hormones is NOT involved in the regulation of blood calcium levels?

<p>Estrogen (D)</p> Signup and view all the answers

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