Q. No.The thyroid hormone that has the most potent effect on increasing metabolic rate would be:
1. thyroxine
2. thyroglobulin
3. triiodothyronine
4. thyrocalcitonin
1. thyroxine
2. thyroglobulin
3. triiodothyronine
4. thyrocalcitonin
The autoimmune disorder, Graves disease, is characterized by all the following except:
1. exophthalmos
2. a positive autoimmune test
3. general edema
4. intolerance to heat
The hypersecretion of which of the following endocrine glands can sometimes be corrected by radioactive iodine uptake?
1. pineal
2. thyroid
3. testes
4. pituitary
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The most active form of vitamin D is:
1. 7-dehydrocholesterol
2. 25 hydroxycholecalciferol
3. 2 cholecalciferol
4. 1, 25 dihydroxycholecalciferol
All the following would be true for the mineralocorticoid, aldosterone, except:
1. secreted from the zona glomerulosa
2. decreases blood Na+ levels
3. stimulated by angiotensin II
4. raises blood volume
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Cushing's syndrome is characterized by all the following except:
1. moon face and buffalo hump
2. under-secretion of ACTH
3. easy bruising
4. hyperglycemia
The type II diabetes is also called as the maturity onset diabetes and is characterized by normal levels of
1. insulin
2. glucose
3. blood lipids
4. ketone bodies in urine
Identify all the organelles that are involed in the production and secretion of protein hormones:
1. Rough endoplasmic reticulum and Golgi apparatus
2. Secretion granules and micorbodies
3. Smooth endoplasmic reticulum and Golgi apparatus
4. Rough endoplasmic reticulum, Golgi apparatus, and secretion granules
What would be the result of hypoadrenalism [Addison’s disease]?
1. Decreased blood concentrations of cortisol and aldosterone, and increased concentrations of CRH and ACTH
2. Decreased blood concentrations of epinephrine and norepinephrine, and no change in concentrations of CRH and ACTH
3. Decreased blood concentrations of thyroid hormones, and increased concentrations of TRH and TSH
4. Increased blood concentrations of cortisol and aldosterone, and decreased concentrations of CRH and ACTH
A patient suspected of having hypothyroidism is investigated and has low blood levels of thyroxine and triiodothyronine. He is given thyrotropin that causes the hormone levels to return to normal. What would such a condition be called?
1. Primary hyposecretion
2. Secondary hyposecretion
3. Primary hypersecretion
4. Secondary hypersecretion
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