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11. Which of the following statements gives the correct order of blood flow of t

ID: 3483167 • Letter: 1

Question

11. Which of the following statements gives the correct order of blood flow of through     nephron?

      a)       Afferent arterioles, glomerulus, peritubular capillaries, efferent arteriole

      b)       Afferent arterioles, glomerulus, efferent arteriole, peritubular capillaries

      c)       Efferent arterioles, glomerulus, afferent arteriole, peritubular capillaries

      d)       Afferent arterioles, peritubular capillaries, glomerulus, efferent arteriole12

12. Increased levels of the hormone PTH in the blood will affect the kidney by?

      a)       Increasing calcium reabsorption

      b)       Increasing calcium excretion

      c)       Increasing the amount of calcium ATPase on the apical membrane

      d)       a) and c)

13. A person given an angiotensin converting enzyme (ACE) inhibitor?

      a)         Will reabsorb more H2O in the collecting duct

      b)       Will reabsorb more Na+ in the distal tubule

      c)         Will excrete urine that has a high volume

      d)        Will excrete urine that has a high potassium levels

14. Antidiuretic hormone (ADH) increases water reabsorption in the collecting duct by binding to receptors that result in insertion of aquaporins into the apical membrane?

      a)       True

      b)       False

15. Renin secretion by juxtaglomerular cells is?

      a)       Increased due to increased pressure in the afferent arteriole

      b)       Decreased by increased renal sympathetic nerve activity

      c)       increased by increased flow pass the macula densa cells

      d)       increased by a drop in blood pressure

16. Increasing Atrial natriuretic peptide (ANP) levels will result in?

      a)       Vasodilation of the afferent arterioles of the kidney

      b)       Decreased renin release

      c)       Increase in angiotensin II levels

      d)      a and b are correct

17. Increasing Aldosterone levels will result in?

      a)         Increased osmolarity of the urine

      b)       Decreased blood pressure

      c)       Decreased blood sodium levels

      d)       Increased blood pressure

18. Which of the following would cause a decrease in the secretion of ADH?

      a)         Increased osmolarity of blood

      b)         Decreased blood pressure

      c)         Decreased osmolarity of blood

      d)       Increased blood pressure

19. Which of the following would be expected to cause renal glomerulus filtration rate (GFR) to increase?

      a)       Dilation of the afferent arteriole
      b)       Stimulation of sympathetic activity
      c)       Constriction of the afferent arteriole
      d)       None of the above are correct

20. The function of the Vasa Recta is

      a)       Establish the osmolarity gradient in the cortex

      b)       Establish the osmolarity gradient in the medulla

      c)       Maintain the osmolarity gradient in the cortex

      d)       Maintain the osmolarity gradient in the medulla  

Explanation / Answer

1.affarant arteriole -glomerulus -efferant arteriole -peritubular capillary. Optiin B .

2increae in parathyroid hormobe cause increase in reabsortption by kidney .option A.

3ace inhibitor inhibit adh thus cause incresase diuresisit also inhibit aldoateron and results in hyponatramia and hyperkalemia. Thus it results incarese urine taht has high volume.

4adh cause unsertion of aquaporin in luminal side of p cell.

False.

5renin secretion from jg cell increased by drop in blood pressure senistized by.vasculr volume receptor.option D

6anp have inhibitory effect on jg cell thus decrease renin secretin and it also affarant arteriole relaxation.option D

7.increase aldosterone cause retention of sodium and ths emwater and lead ti increase in blood pressure.