Adrenal Gland

59 Questions | Total Attempts: 2135

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Adrenal Gland

This is a quiz on the pituitary gland lectures in Week 2 endocrine. Notes can be found in https://imueos. Blogspot. Com under the label: adrenal gland.


Questions and Answers
  • 1. 
    Which of these is the best answer? The adrenal gland lies:
    • A. 

      In the peritoneal cavity

    • B. 

      Lateral to the liver

    • C. 

      On the kidneys

    • D. 

      In the abdominal cavity

  • 2. 
    The adrenal cortex secretes steroid hormones. Which of these corticosteroids are mainly secreted by the adrenal cortex?
    • A. 

      C1

    • B. 

      C16

    • C. 

      C19

    • D. 

      C21

  • 3. 
    The adrenal medulla is composed of modified sympathetic ganglion cells, which is nervous in nature and secretes hormone upon stimulation. Which of these hormones are secreted?
    • A. 

      Adrenaline

    • B. 

      Cortisol

    • C. 

      Norepinephrine

    • D. 

      Catecholamines

  • 4. 
    For the biosynthesis of steroid hormones in the adrenal cortex, adrenal cortex contain cells with large amounts of:
    • A. 

      RER

    • B. 

      SER

    • C. 

      Protein

    • D. 

      Lipid

  • 5. 
    The adrenal cortex is divided into 3 zones:1) Zona Glomerulosa (outermost)2) Zona Fasciculata3) Zona reticularisWhat does the Zona glomerulosa secrete?
    • A. 

      Mineralocorticoids (Aldosterone, deoxycorticosterone)

    • B. 

      Glucocorticoids (Cortisol, corticosterone)

    • C. 

      Androgens

  • 6. 
    The adrenal cortex is divided into 3 zones:1) Zona Glomerulosa (outermost)2) Zona Fasciculata3) Zona reticularisWhat does the Zona Fasciculata & reticularis secrete?
    • A. 

      Mineralocorticoids

    • B. 

      Glucocorticoids

    • C. 

      Androgens

  • 7. 
    What is the arrangement of the cells of the zona glomerulosa?
    • A. 

      Linear cords

    • B. 

      Whorl of cells

    • C. 

      Netlike

  • 8. 
    What is the arrangement of the cells of the zona fasciculata?
    • A. 

      Netlike

    • B. 

      Whorls of cells

    • C. 

      Linear cords

  • 9. 
    What is the arrangement of the zona reticularis?
    • A. 

      Netlike

    • B. 

      Whorl of cells

    • C. 

      Linear cord

  • 10. 
    Which of these is the rate limiting step for the biosynthesis of cortisol?
    • A. 

      Conversion of cholesterol to pregnenolone by desmolase/SCC

    • B. 

      Converstion of progesterone to 17 a-hydroxyprogesterone by enzyme hydroxylase

    • C. 

      Converstion of 17 a-hydroxyprogesterone to 11-deoxycortisol by enzyme hydroxylase

    • D. 

      Conversion of 11-Deoxycortisol to cortisol by enzyme hydroxylase

  • 11. 
    Which of these is the most potent mineralocorticoids?
    • A. 

      Aldosterone

    • B. 

      Deoxycorticosterone

    • C. 

      Testosterone

    • D. 

      Cortisol

    • E. 

      Adrenaline

  • 12. 
    Why is it that aldosterone is rapidly cleared from plasma by liver forming tetrahydroaldosterone 3-gluocronide, which is then excreted in the urine?
    • A. 

      Sensitive to liver receptors

    • B. 

      Carried by plasma carrier protein to liver

    • C. 

      No specific plasma carrier protein

    • D. 

      All hormones will be rapidly cleared by liver

  • 13. 
    Which part of the kidney will aldosterone act on?
    • A. 

      DCT & CD

    • B. 

      DCT & PCT

    • C. 

      LOH

    • D. 

      LOH & PCT

  • 14. 
    Which other parts of the body does aldosterone act on beside the distal tubules of the kidney?
    • A. 

      Tongue

    • B. 

      Stomach

    • C. 

      Blood vessel

    • D. 

      Skin

  • 15. 
    For the Na+ to be reabsorbed, Na/K pump will require ATP which will be generated by mitochondrial enzymes (mitochondrial activity increased by aldosterone), therefore Na+ will be reabsorbed, and K+ will be eliminated instead. Therefore, there will be alterations in the acid-base balance of the blood. Loss in basic content (K+) will cause blood to be more..
    • A. 

      Acidic

    • B. 

      Basic

  • 16. 
    The kidney compensate the loss of basic K+ from the reabsorption of Na+ by secreting:
    • A. 

      HCO3-

    • B. 

      K+

    • C. 

      H+

    • D. 

      NH3+

    • E. 

      NH+

  • 17. 
    How is aldosterone release stimulated?
    • A. 

      Renin-angiotensin-aldosterone system

    • B. 

      Atrial Natriuretic Factor (ANF)

    • C. 

      Low Na+

    • D. 

      High K+

    • E. 

      ACTH

  • 18. 
    What is the signs & symptoms of aldosteronism? (hypersecretion of aldosterone)
    • A. 

      Hypotension

    • B. 

      Hypernatremia

    • C. 

      Hypokalemia

    • D. 

      Alkalosis

  • 19. 
    Glucocorticoids circulates in plasma in protein bouund/free form. Which of these is the plasma binding protein of glucocorticoids?
    • A. 

      A-globulin

    • B. 

      B-globulin

    • C. 

      Albumin

    • D. 

      Protein C

  • 20. 
    Which of these are effect of cortisol?
    • A. 

      Increase blood glucose

    • B. 

      Increase lipogenesis in extremities

    • C. 

      Promote protein metabolisme

    • D. 

      Weaken immune system

    • E. 

      Increase blood pressure via aldosterone release

  • 21. 
    Does aldosterone inhibit ADH release?
    • A. 

      Yes

    • B. 

      No

  • 22. 
    Which of these are signs & symptoms of Cushing's syndrome?
    • A. 

      Water & salt retention (aldosterone)

    • B. 

      Polyuria (inhibit ADH)

    • C. 

      Tendency to bruising

    • D. 

      Pendulous abdomen

    • E. 

      Crescentic face

  • 23. 
    In Addison's disease, we will be able to see:
    • A. 

      Deficiency in both glucocorticoids & mineralocorticoids

    • B. 

      Weight gain

    • C. 

      Plasma glucose decrease

    • D. 

      Dehydration

    • E. 

      Hypotension

  • 24. 
    The gonadocorticoids are sex hormones. Which of these are precursors to the sex hormones?
    • A. 

      Androsterotenedione

    • B. 

      DHAP

    • C. 

      DHEA

    • D. 

      DHT

  • 25. 
    Which of these are active androgens?
    • A. 

      DHT

    • B. 

      Progesterone

    • C. 

      Testosterone

    • D. 

      DHEA

    • E. 

      Oestrogen

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