This document contains 30 multiple choice questions about endocrinology. The questions cover topics like the anatomy and blood supply of endocrine glands, hormones and their functions, pathologies of different endocrine disorders, and effects of various hormones. Answer options with the correct response are included for each question.

1. 152020/1/ Module 15 MCQ
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Home / My courses / Experimental Exams _Third Year 2018-2019 / Topic 6 / Module 15 MCQ
QUESTION 11
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High ligation of the superior thyroid artery during thyroidectomy may causes
injury of:
Select one:
a. Recurrent laryngeal nerve
b. External laryngeal nerve
c. Internal laryngeal nerve
d. Superior laryngeal nerve

2. 152020/1/ Module 15 MCQ
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QUESTION 22
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ONE of the following is CORRECT regarding the thyroid gland:
Select one:
a. Superior thyroid artery supplies parathyroid glands
b. The upper border of the isthmus is related to superior thyroid veins
c. The inferior thyroid vein terminates in the internal jugular vein
d. Its posterior surface is related to the longus coli muscle
QUESTION 33
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In diabetes mellitus:
Select one:
a. Polyuria is due to increased water intake
b. Fatty acids are the main substrate for cellular energy
c. Urea excretion in urine is less than normal
d. Glycogen synthesis is increased

3. 152020/1/ Module 15 MCQ
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QUESTION 44
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Route of administration of flypressin is:
Select one:
a. Oral
b. Nasal spray
c. Parenteral
d. All of the above
QUESTION 55
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Bilateral removal of the outermost layer of the adrenal cortex of experimental
animals causes:
Select one:
a. Hyponatremia
b. Hypertension
c. Hypervolemia
d. Hypokalemia

4. 152020/1/ Module 15 MCQ
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QUESTION 66
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In the opposite diagram the cells at no. 1 are described as:
Select one:
a. Large cells that rest on the same basement membrane as cells no.3
b. Cuboidal cells with supranuclear Golgi
c. Large cells with deep acidophilic cytoplasm
d. Cuboidal cells that change their shape according to the degree of activity

5. 152020/1/ Module 15 MCQ
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QUESTION 77
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A life-saving drug in thyroid storm as well as in myxedema coma is:
Select one:
a. Propranolol
b. Hydrocortisone
c. Diltiazem
d. Potassium iodide
QUESTION 88
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Thyroid hormones tend to:
Select one:
a. Increase β- adrenergic receptors on the heart
b. Decrease GIT motility and secretion
c. Decrease 2,3 DPG formation inside RBCs
d. Increase serum cholesterol level

6. 152020/1/ Module 15 MCQ
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QUESTION 99
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One of the following statements about suprarenal gland is TRUE:
Select one:
a. Chromaffin cells do not contain secretory granules
b. Cells of zona glomerulosa are polyhedral in shape
c. Cells of zona fasciculata are pale acidophilic
d. Cells of zona reticularis are arranged in regular cords
QUESTION 1010
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About Ca++, which of the following is TRUE:
Select one:
a. Exchangeable Ca++ is a stable Ca++ salts present only in the bone
b. It is absorbed from small intestine by facilitated diffusion mechanism only
c. The normal plasma Ca++ is 7-11 mg %
d. Hypocalcemia causes hyperexcitability at the neuromascular junction

7. 152020/1/ Module 15 MCQ
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QUESTION 1111
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The following drug increases serum level of calcium and phosphate:
Select one:
a. Parathormone
b. Cortisol
c. Calcitonin
d. Vitamin D
QUESTION 1212
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The activated hormone receptor complex of Glucocorticoids:
Select one:
a. Activates protein kinase A
b. Migrates to the nucleus and binds to hormone response elements (HRE)
c. Inhibits the transcription of hepatic PEPCK (the key enzyme of gluconeogenesis)
d. Increases intracellular calcium

8. 152020/1/ Module 15 MCQ
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QUESTION 1313
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About oxytocin, which of the following statements is TRUE?
Select one:
a. It is synthesized by posterior pituitary gland
b. its secretion is under hormonal control
c. It is present only in females
d. It causes contraction of both pregnant and non-pregnant uterus
QUESTION 1414
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Regarding suprarenal glands, ONE of the following is CORRECT:
Select one:
a. Cells of the zona glomerulosa develop from the neural crest cells
b. Each gland is drained by three veins
c. The left gland lies deep to abdominal aorta
d. Inferior vena cava is an anterior relation of the right suprarenal gland

9. 152020/1/ Module 15 MCQ
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QUESTION 1515
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One of the following statements regarding the pituitary gland is true:
Select one:
a. Chromophobes are considered as degranulated chromophils
b. Thyrotrophs are smaller than somatotrophs but contain larger secretory granules
c. Herring bodies are acidophilic secretory granules in the cytoplasm of pituicytes
d. Prolactin is synthesized and secreted by basophils
QUESTION 1616
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Glucagon Hormone:
Select one:
a. Increases lipolysis
b. Is stimulated by hyperglycemia
c. Increases glycogenolysis in the muscles
d. Secretion is increased by somatostatin

10. 152020/1/ Module 15 MCQ
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QUESTION 1717
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The following corticosteroid preparation is more likely to intensify diabetes
mellitus:
Select one:
a. Prednisolone
b. Prednisone
c. Beclomethasone
d. Betamethasone
QUESTION 1818
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An anti-diabetic drug withdrawn from the market due to fatal cardiac arrhythmia
is:
Select one:
a. Troglitazone
b. Tolbutamide
c. Glibenclamide
d. Rosiglitazone

11. 152020/1/ Module 15 MCQ
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QUESTION 1919
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All of the following are symptoms of myxoedema EXCEPT:
Select one:
a. Dry cold skin
b. Somnolence
c. Puffiness of the face
d. Weight loss
QUESTION 2020
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Hormones that act through Phospholipase C activation, in fact are using three
second messengers:
Select one:
a. Ca++, Diacylglycerol and Inositol 1.4.5 triphosphate
b. Ca++, Diacylglycerol and ceramide
c. cAMP, Diacylglycerol and Inositol 1,4,5 triphosphate
d. cAMP, Ca++ and ceramide

12. 152020/1/ Module 15 MCQ
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QUESTION 2121
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Cortisol and GH are most different in their metabolic effects on:
Select one:
a. Mobilization of triglycerides
b. Glucose uptake in peripheral tissues
c. Plasma glucose concentration
d. Protein synthesis in muscles
QUESTION 2222
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The term ‘neurohormone’ is applied to:
Select one:
a. GH
b. vasopressin
c. TSH
d. FSH

13. 152020/1/ Module 15 MCQ
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QUESTION 2323
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A 30-year-old pregnant female had marked blood loss during delivery.
Postpartum she has fatigue, amenorrhea, and is unable to breast-feed the infant.
Which of the following pathologic lesions is she most likely to have had after
delivery?
Select one:
a. Bilateral adrenal hemorrhage
b. Subacute lymphocytic thyroiditis
c. Pituitary necrosis
d. Insulinitis
QUESTION 2424
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Type I diabetes is characterised by all of the following EXCEPT:
Select one:
a. HLA-D linked
b. Glucose underutilization
c. Amyloid deposits in islets
d. Autoantibodies against islet cells

14. 152020/1/ Module 15 MCQ
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QUESTION 2525
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A female patient presents with weight loss, sweating, palpitations, tachycardia,
tremors, lid lag, exopthalmos, and thyroid enlargement. Upon taking a thyroid
scan, there appears to be a diffusely elevated radioactive iodine uptake. What is
the pathogenesis of her disease?
Select one:
a. Infectious
b. Unknown
c. Neoplastic
d. Autoimmune
QUESTION 2626
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Which of the following is NOT true regarding pheochromocytoma?
Select one:
a. It can cause hypertension
b. It only occurs in the adrenal gland
c. It is usually an aggressive, malignant tumor
d. It may be hereditary or sporadic

15. 152020/1/ Module 15 MCQ
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QUESTION 2727
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ONE of the following is CORRECT regarding pituitary gland:
Select one:
a. It is separated from the floor of the hypophyseal fossa by the intercavernous sinus
b. It is connected to optic chiasma by the infundibulum
c. It is related to the tuberculum sellae on each side
d. Sphenoid air sinus lies posterior to it
QUESTION 2828
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Glucocorticoids tend to decrease:
Select one:
a. Protein anabolism in the liver
b. Renal excretion of calcium
c. Glucose utilization by insulin-sensitive tissues
d. Hepatic gluconeogenesis

16. 152020/1/ Module 15 MCQ
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QUESTION 2929
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Growth hormone has the following effect:
Select one:
a. It decreases calcium and iron absorption from the small intestine
b. It prevents glycogen deposition
c. It stimulates erythropoiesis
d. It increases the rate of urinary excretion of sodium and potassium
QUESTION 3030
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Parathyroid hormone:
Select one:
a. Its rate of secretion is increased by the slightest increase in calcium level
b. Within minutes, it results in rapid proliferation of osteoblasts
c. Enhances calcium reabsorption in proximal convoluted tubules
d. Is required for production of active form of vitamin D by the kidney

17. 152020/1/ Module 15 MCQ
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