Question 1

Loop diuretics such as Lasix

Accepted Answer

A)  inhibit the actions of ADH.
B)  add extra solutes to the filtrate.
C)  inhibit active transport of salt out of the ascending loop of Henle limb.
D)  inhibit salt transport in the first section of the distal tubule.E) B) and D)
F) B) and C)

Question 2

Na+ reabsorption is a(n) __________ process,while Cl- reabsoprtion is a(n) __________ process.

Accepted Answer

A)  active,active
B)  active,passive
C)  passive,passive
D)  passive,activeE) All of the above
F) B) and C)

Question 3

Blood pressure is regulated through the actions of the kidneys.

Accepted Answer

A) True 
 B)False

Question 4

Macula densa cells of the juxtaglomerular apparatus are part of the tubuloglomerular feedback mechanism.

Accepted Answer

A) True 
 B)False

Question 5

Since water follows the reabsorption of Na+ in the proximal tubule,the filtrate is isomotic with the blood.

Accepted Answer

A) True 
 B)False

Question 6

Excessive aldosterone secretion would induce

Accepted Answer

A)  decreased plasma potassium.
B)  decreased plasma sodium.
C)  decreased plasma chloride.
D)  no change in plasma ion balance.E) B) and C)
F) None of the above

Question 7

The collecting duct is naturally impermeable to salt but permeable to water.

Accepted Answer

A) True 
 B)False

Question 8

Tubular ultrafiltrate enters the collecting duct from the

Accepted Answer

A)  glomerulus.
B)  loop of Henle.
C)  distal convoluted tubule.
D)  proximal convoluted tubule.E) All of the above
F) A) and B)

Question 9

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 10

People with diabetes mellitus have polyuria because

Accepted Answer

A)  they have inadequate amounts of ADH.
B)  they have greater oncotic pressure in the kidney tubules.
C)  they have inadequate amounts of aldosterone.
D)  they drink a lot of water.E) B) and D)
F) C) and D)

Question 11

The average glomerular filtration rate is equal to

Accepted Answer

A)  180 L/day.
B)  5.5 L/min.
C)  100 mmHg/hour.
D)  8 mg/hour.E) B) and C)
F) A) and C)

Question 12

The effectiveness of some antibiotics,such as penicillin,is enhanced by preventing their excretion by use of

Accepted Answer

A)  toxiporins.
B)  organic anion transporters.
C)  probenecid.
D)  xenobiotics.E) A) and B)
F) None of the above

Exam 17: Physiology of the Kidneys

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

Correct Answer
verified

Excessive aldosterone secretion would induce

Correct Answer
verified

People with diabetes mellitus have polyuria because

Correct Answer
verified

Macula densa cells of the juxtaglomerular apparatus are part of the tubuloglomerular feedback mechanism.

Correct Answer
verified

Tubular ultrafiltrate enters the collecting duct from the

Correct Answer
verified

The collecting duct is naturally impermeable to salt but permeable to water.

Correct Answer
verified

Na⁺ reabsorption is a(n) process,while Cl^- reabsoprtion is a(n) process.

Correct Answer
verified

The effectiveness of some antibiotics,such as penicillin,is enhanced by preventing their excretion by use of

Correct Answer
verified

Blood pressure is regulated through the actions of the kidneys.

Correct Answer
verified

Loop diuretics such as Lasix

Correct Answer
verified

The average glomerular filtration rate is equal to

Correct Answer
verified

Since water follows the reabsorption of Na⁺ in the proximal tubule,the filtrate is isomotic with the blood.

Correct Answer
verified

Exam 17: Physiology of the Kidneys

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

Correct AnswerverifiedShow Answer

Excessive aldosterone secretion would induce

Correct AnswerverifiedShow Answer

People with diabetes mellitus have polyuria because

Correct AnswerverifiedShow Answer

Macula densa cells of the juxtaglomerular apparatus are part of the tubuloglomerular feedback mechanism.

Correct AnswerverifiedShow Answer

Tubular ultrafiltrate enters the collecting duct from the

Correct AnswerverifiedShow Answer

The collecting duct is naturally impermeable to salt but permeable to water.

Correct AnswerverifiedShow Answer

Na+ reabsorption is a(n) __________ process,while Cl- reabsoprtion is a(n) __________ process.

Correct AnswerverifiedShow Answer

The effectiveness of some antibiotics,such as penicillin,is enhanced by preventing their excretion by use of

Correct AnswerverifiedShow Answer

Blood pressure is regulated through the actions of the kidneys.

Correct AnswerverifiedShow Answer

Loop diuretics such as Lasix

Correct AnswerverifiedShow Answer

The average glomerular filtration rate is equal to

Correct AnswerverifiedShow Answer

Since water follows the reabsorption of Na+ in the proximal tubule,the filtrate is isomotic with the blood.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Na⁺ reabsorption is a(n) process,while Cl^- reabsoprtion is a(n) process.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Since water follows the reabsorption of Na⁺ in the proximal tubule,the filtrate is isomotic with the blood.

Correct Answer
verified