Saturday, 23rd June 2018
23 June 2018

Physiology Mcqs 2 – Endocrine/Reproductive

Physiology MCQs – endocrine and reproductive

  1. Aromatase Converts
    1. Testosterone to estrogen
    2. Pregnenolone to cholesterol
    3. Estrogen to testosterone
    4. Cholesterol to aldosterone
      1. Ans(1)
  2. Sertoli cells secrete all except
    1. Inhibin
    2. Androgen I binding Protein
    3. Mullerian inhibiting Substance
    4. Testosterone
      1. Ans(4)
  3. Osteoclasts are inhibited by
    1. PTH
    2. Calcitonin
    3. 1TNF – alpha
    4. 1,25 dihydroxycholecalciferol
      1. Ans(2)
  4. Relative or absolute lack of insulin leads to
    1. Decreased gluconeogenesis
    2. Increased glycogen synthesis
    3. Decreased glycogenolysis
    4. Increased production of 3-hydroxybutyrate
      1. Ans(4)
  5. Testosterone is secreted by
    1. Leydig cells
    2. Sertoli cells
    3. Prostate
    4. Cowper’s Glands
      1. Ans(1)
  6. All are actions of insulin except
    1. Inhibits lipolysis
    2. Inhibits glycolysis
    3. Inhibits gluconeogenesis
    4. Inhibits glycogenolysis
      1. Ans(2)
  7. Factor essential for myoepithelial cell contraction is
    1. Prostaglandins
    2. Intracellular free Ca2+
    3.  Extracellular Ca2+
    4. Oxytocin
      1. Ans(4)
  8. Mullerian Regression Factor is produced by
    1. Leydig cells
    2. Sertoli cells
    3. Clue cells
    4. Peg cells
      1. Ans(2)
  9. True regarding spermatogenesis
    1. It takes 74 days for the spermatogonium to become spermatozoa
    2. Two spermatids are produced in second mitotic division
    3. Androgens are produced by Leydig cells
    4. Sertoli cells secrete inhibin
      1. Ans(2)
  10. LH peak occurs – prior to onset of ovulation
    1. 8-10 hours
    2. 12 – 24 hours
    3. 24 – 48 hours
    4. 48 – 78 hours
      1. Ans(1)
  11. All the following hormones play a major role in calcium metabolism except
    1. Vitamin D
    2. Thyroxine
    3. Calcitonin
    4. Parathormone
      1. Ans(2)
  12. Insulin is secreted by
    1. Alpha cells
    2. D cells
    3. Beta cells
    4. Gamma cells
      1. Ans(3)
  13. An essential endocrine gland is
    1. Thyroid
    2. Adrenals
    3. Pituitary
    4. Pancreas
      1. Ans(2)
  14. Posterior pituitary secretes
    1. ADH
    2. TSH
    3. ACTH
    4. TRH
      1. Ans(1)
  15. Inhibin inhibits
    1. FSH
    2. LH
    3. Estrogen
    4. Progesterone
      1. Ans(1)
  16. FSH & LH are produced by
    1. Anterior pituitary
    2. Posterior pituitary
    3. Hypothalamus
    4. Uterus
      1. Ans(1)
  17. True statements regarding PGE2 is
    1. Synthesized only after 10 years of age
    2. Closes the ductus arteriosus
    3. Maintains the patency of ductus arteriosus
    4. Is a vasoconstrictor
      1. Ans(3)
  18. Inhibin
    1. Inhibits the secretion of FSH
    2. Inhibits the secretion of LH
    3. Inhibits the secretion of Estrogen
    4. Inhibits the secretion of testosterone
      1. Ans(1)
  19. True regarding spermatogenesis A/E
    1. The estrogen content of the fluid in the rete testes is high
    2. The spermatogonia mature into primary spermatocytes during adolescence
    3. FSH & Androgens maintain the gametogenic function of the testes
    4. Sperms gain their motility in the epididymis
      1. Ans(None)
  20. Cushing’s syndrome is due to excess of
    1. Thyroxine
    2. Cortisol
    3. Androgens
    4. Growth hormone
      1. Ans(2)
  21. The hormone which causes ejection of milk from the breast is
    1. HGG
    2. Prolactin
    3. Oxytocin
    4. Mammothrept
      1. Ans(3)
  22. Pituitary has no control over
    1. Thyroid gland
    2. Adrenal Medulla
    3. Adrenal cortex
    4. Endocrine functions of ovary
      1. Ans(2)
  23. All the following effects are seen in hypersecretion of Aldosterone except
    1. Acidic urine
    2. Potassium excretion
    3. Sodium retention
    4. Hypotension
      1. Ans(4)
  24. Actions of Parathormone A/E
    1. Increased bone formation
    2. Lowers serum phosphate
    3. Increase serum calcium
    4. Increased phosphate excretion
      1. Ans(1)
  25. Insulin stress assay estimates
    1. Glucagon
    2. Growth hormone
    3. Catecholamine
    4. Insulin
      1. Ans(2)
  26. Secretion from the prostate is rich in
    1. Fructose
    2. Fibrinolysis
    3. Hyaluronidase
    4. Prostaglandins
      1. Ans(2)
  27. Testis produces following hormones A/E
    1. Testosterone
    2. Oestrogen
    3. Inhibin
    4. FSH
      1. Ans(4)
  28. Hormones act by increasing protein synthesis are all except
    1. Aldosterone
    2. Cortisol
    3. Estrogen
    4. Vasopressin
      1. Ans(4)
  29. GLUT -1 is abundant in
    1. Muscle
    2. Testis
    3. Erythrocyte
    4. Brain
      1. Ans(4)
  30. Inhibition of glucagon secretion is
    1. Aminoacids
    2. Somatostatin
    3. Exercise
    4. Cortisol
      1. Ans(2)

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