The Thyroid Gland Quiz

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Questions and Answers

Which gland produces three active hormones, with tri iodothyronine (T3) being the major hormone secreted?

  • Pituitary gland
  • Parathyroid gland
  • Adrenal gland
  • Thyroid gland (correct)

Where are the lobes of the thyroid gland located?

  • Superior to the trachea
  • Superior to the larynx
  • Inferior to the trachea (correct)
  • Inferior to the larynx

Which hormone is four times more potent than T4 (thyroxin)?

  • Calcitonin
  • Tri iodothyronine (T3) (correct)
  • Thyroxin (T4)
  • Thyroid-stimulating hormone (TSH)

What stimulates the production and release of T3 and T4 hormones?

<p>Thyroid-stimulating hormone (TSH) (A)</p> Signup and view all the answers

Which of the following is a physiological effect of T3 and T4 hormones?

<p>Promote basal metabolic rate (B)</p> Signup and view all the answers

What is the term for the excess secretion of T3 and T4 hormones?

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

Which disease is caused by the abnormal antibodies that mimic TSH and continuously stimulate thyroxin release?

<p>Graves' disease (B)</p> Signup and view all the answers

What are the symptoms of Graves' disease?

<p>High metabolic rate and weight loss (D)</p> Signup and view all the answers

What is the structure of tri iodothyronine (T3)?

<p>Contains three iodine atoms (D)</p> Signup and view all the answers

What is the structure of thyroxin (T4)?

<p>Contains four iodine atoms (C)</p> Signup and view all the answers

Which hormone is responsible for the protrusion of the eyeballs in hyperthyroidism?

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

What is the main function of erythropoietin?

<p>To increase the production of red blood cells (A)</p> Signup and view all the answers

Which hormone promotes the absorption of calcium from the diet?

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

What is the characteristic symptom of myxedema?

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

What is the result of congenital under secretion of thyroxin in infants?

<p>Mental retardation with poor physical growth (A)</p> Signup and view all the answers

What hormone increases the deposition of calcium in the bone matrix?

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

What happens when there is an excessive level of blood calcium?

<p>Release of parathormone (A)</p> Signup and view all the answers

What is the main function of the parathyroid glands?

<p>To control the calcium balance of the blood (B)</p> Signup and view all the answers

What is the result of over secretion of parathormone?

<p>Formation of kidney stones (B)</p> Signup and view all the answers

Which cells in the pancreas secrete insulin and glucagon?

<p>Islets Of Langerhans (C)</p> Signup and view all the answers

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