Question 1

Urea transport in the collecting duct is a(n) __________ process.

Accepted Answer

A)  active
B)  passive
C)  exocytosis
D)  endocytosisE) C) and D)
F) All of the above

Question 2

Antidiuretic hormone

Accepted Answer

A)  stimulates water reabsorption by the kidney.
B)  induces fusion of aquaporin containing vesicles with the plasma membrane.
C)  is secreted in response to dehydration.
D)  All of the choices are correct.E) A) and B)
F) C) and D)

Question 3

The vasa recta have the net effect of concentrating solutes in the interstitial fluid of the renal medulla.

Accepted Answer

A) True 
 B)False

Question 4

Due to the action of aldosterone,water is reabsorbed because

Accepted Answer

A)  sodium is excreted in the urine.
B)  potassium is reabsorbed into peritubular blood.
C)  sodium is reabsorbed into peritubular blood.
D)  aldosterone opens aquapores.E) C) and D)
F) A) and D)

Question 5

What is the net filtration pressure of the glomerular capillaries?

Accepted Answer

A)  10 mm Hg inward
B)  15 mm Hg outward
C)  15 mm Hg inward
D)  10 mm Hg outwardE) A) and B)
F) All of the above

Question 6

Granular cells of the juxtaglomerular apparatus respond to decreased blood volume and increased sympathetic nerve activity by secreting

Accepted Answer

A)  renin.
B)  inulin.
C)  angiotensinogen.
D)  natriuretic hormone.E) B) and C)
F) A) and D)

Question 7

Dilation of the afferent arteriole would increase glomerular pressure.

Accepted Answer

A) True 
 B)False

Question 8

The minimum urine volume needed to excrete metabolic wastes produced by the body is called as

Accepted Answer

A)  renal plasma threshold.
B)  renal autoregulation.
C)  obligatory water loss.
D)  renal transport minimum.E) All of the above
F) B) and C)

Question 9

PAH actually measures

Accepted Answer

A)  glomerular filtration rate.
B)  renal plasma clearance.
C)  total renal blood flow.
D)  transport maximum.E) C) and D)
F) B) and C)

Question 10

Hemorrhage would induce

Accepted Answer

A)  increased renin secretion.
B)  increased atrial natriuretic peptide secretion.
C)  decreased ADH secretion.
D)  All of the choices are correct.E) All of the above
F) B) and D)

Question 11

__________ is believed to be an autoimmune disease affecting the kidney.

Accepted Answer

A)  Pyelonephritis
B)  Polycystic kidney
C)  Glomerulonephritis
D)  CystitisE) All of the above
F) A) and B)

Question 12

Conn's syndrome results in hypokalemia and

Accepted Answer

A)  metabolic alkalosis.
B)  metabolic acidosis.
C)  loss of H+.
D)  Both metabolic alkalosis and loss of H+ are correct.E) All of the above
F) None of the above

Question 13

Damage to the lumbar region of the spinal cord could impair micturition.

Accepted Answer

A) True 
 B)False

Question 14

ATP and adenosine from macula densa cells stimulate vasodilation of the afferent arteriole.

Accepted Answer

A) True 
 B)False

Question 15

Under conditions of severe dehydration approximately 99.2% of the glomerular ultrafiltrate volume is reabsorbed.

Accepted Answer

A) True 
 B)False

Question 16

Inhibiting the actions of __________ would impair the ability of the kidney to regulate pH of the blood.

Accepted Answer

A)  aldosterone
B)  ADH
C)  carbonic anhydrase
D)  inulinE) B) and C)
F) A) and D)

Question 17

An increase of blood volume will cause secretion of ADH.

Accepted Answer

A) True 
 B)False

Question 18

As the tubular filtrate moves through the descending limb of the loop of Henle,the osmolality of the filtrate increases.

Accepted Answer

A) True 
 B)False

Question 19

The _________________ is the saturation point of renal carrier molecules.

Accepted Answer

A)  transport maximum
B)  GFR
C)  renal plasma clearance
D)  renal plasma thresholdE) A) and C)
F) B) and C)

Question 20

The proximal tubule and loop of Henle are subject to hormonal regulation of sodium and water.

Accepted Answer

A) True 
 B)False

Exam 17: Physiology of the Kidneys

What is the net filtration pressure of the glomerular capillaries?

Correct AnswerverifiedShow Answer

Damage to the lumbar region of the spinal cord could impair micturition.

Correct AnswerverifiedShow Answer

__________ is believed to be an autoimmune disease affecting the kidney.

Correct AnswerverifiedShow Answer

The proximal tubule and loop of Henle are subject to hormonal regulation of sodium and water.

Correct AnswerverifiedShow Answer

Under conditions of severe dehydration approximately 99.2% of the glomerular ultrafiltrate volume is reabsorbed.

Correct AnswerverifiedShow Answer

Inhibiting the actions of __________ would impair the ability of the kidney to regulate pH of the blood.

Correct AnswerverifiedShow Answer

Dilation of the afferent arteriole would increase glomerular pressure.

Correct AnswerverifiedShow Answer

The _________________ is the saturation point of renal carrier molecules.

Correct AnswerverifiedShow Answer

Due to the action of aldosterone,water is reabsorbed because

Correct AnswerverifiedShow Answer

PAH actually measures

Correct AnswerverifiedShow Answer

The minimum urine volume needed to excrete metabolic wastes produced by the body is called as

Correct AnswerverifiedShow Answer

An increase of blood volume will cause secretion of ADH.

Correct AnswerverifiedShow Answer

As the tubular filtrate moves through the descending limb of the loop of Henle,the osmolality of the filtrate increases.

Correct AnswerverifiedShow Answer

Conn's syndrome results in hypokalemia and

Correct AnswerverifiedShow Answer

Hemorrhage would induce

Correct AnswerverifiedShow Answer

ATP and adenosine from macula densa cells stimulate vasodilation of the afferent arteriole.

Correct AnswerverifiedShow Answer

The vasa recta have the net effect of concentrating solutes in the interstitial fluid of the renal medulla.

Correct AnswerverifiedShow Answer

Urea transport in the collecting duct is a(n) __________ process.

Correct AnswerverifiedShow Answer

Granular cells of the juxtaglomerular apparatus respond to decreased blood volume and increased sympathetic nerve activity by secreting

Correct AnswerverifiedShow Answer

Antidiuretic hormone

Correct AnswerverifiedShow Answer

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