The Thyroid Gland Quiz

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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?

Thyroid-stimulating hormone (TSH) Signup and view all the answers

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

Promote basal metabolic rate Signup and view all the answers

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

Hyperthyroidism Signup and view all the answers

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

Graves' disease Signup and view all the answers

What are the symptoms of Graves' disease?

High metabolic rate and weight loss Signup and view all the answers

What is the structure of tri iodothyronine (T3)?

Contains three iodine atoms Signup and view all the answers

What is the structure of thyroxin (T4)?

Contains four iodine atoms Signup and view all the answers

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

Parathormone Signup and view all the answers

What is the main function of erythropoietin?

To increase the production of red blood cells Signup and view all the answers

Which hormone promotes the absorption of calcium from the diet?

Calcitriol Signup and view all the answers

What is the characteristic symptom of myxedema?

Puffy eyes Signup and view all the answers

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

Mental retardation with poor physical growth Signup and view all the answers

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

Parathormone Signup and view all the answers

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

Release of parathormone Signup and view all the answers

What is the main function of the parathyroid glands?

To control the calcium balance of the blood Signup and view all the answers

What is the result of over secretion of parathormone?

Formation of kidney stones Signup and view all the answers

Which cells in the pancreas secrete insulin and glucagon?

Islets Of Langerhans Signup and view all the answers