2330552
Description
Quiz by #أطباء_2020 , updated more than 1 year ago
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Created by #أطباء_2020
almost 10 years ago
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Question 1
Question
The arteries which run between the medullary pyramids:
Answer
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Arcuate arteries.
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Interlobular arteries.
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Interlobar arteries.
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Renal artery.
Question 2
Question
Regarding renal plasma clearance:
Answer
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It is the ability of the kidney to clear the plasma of certain substance.
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The process which removes the unwanted substances from glomerular capillary bed.
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It is a measure of the effectiveness of the kidney to remove substances from ECF.
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All of the above.
Question 3
Question
Glomerular filtration rate:
Answer
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The percentage of renal plasma flow that becomes a glomerular filtrate.
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The volume of fluid filtered from glomerular capillaries into bowman's capsule per unit time.
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Both A & B.
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Non of the above.
Question 4
Question
Decreased renal blood flow will lead to:
Answer
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Increased GFR.
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Decreased GFR.
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Increased glomerular capillary pressure.
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Both A & C.
Question 5
Question
Sever constriction of efferent arterioles leads to:
Answer
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Increased GFR.
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Decreased GFR.
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Increased plasma osmotic pressure.
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Both B & C.
Question 6
Question
GFR is:
Answer
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Inversely proportional to the permeability of glomerular membrane.
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Directly proportional to plasma proteins concentration.
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Directly proportional to the diameter of afferent arterioles.
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Non of the above.
Question 7
Question
According amino acids reabsorption:
Answer
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Reabsorbed partially by 2ry active process.
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Reabsorbed completely by 1ry active process.
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Reabsorbed partially by 1ry active process.
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Reabsorbed completely by 2ry active process.
Question 8
Question
65% of filtered water is reabsorbed in:
Answer
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Proximal tubule by facilitated diffusion.
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Distal tubule by facultative reabsorption.
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Proximal tubule by passive diffusion.
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Both B & C.
Question 9
Question
Which of the following is true about Loop of Henle:
Answer
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The thin ascending limb is permeable to water.
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The thick descending limb is impermeable to water.
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25% of Na+ & Cl-- are reabsorbed In it.
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All of the above.
Question 10
Question
The thick ascending limb of loop of Henle:
Answer
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Maintains a low intercellular sodium concentration.
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Have a co-transporter which transport 1Na+, 1K+& 1Cl--.
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Maintains a negative electrical potential in the cell.
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All of the above.
Question 11
Question
Regarding renal counter current mechanism:
Answer
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It include loop of Henle & Vasa recta only.
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Doesn't depend on the osmolality.
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It is a mechanism of urine concentration.
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Non of the above.
Question 12
Question
The function of the countercurrent exchanger system in vasa recta:
Answer
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Prevent removal of NaCl & urea from the interstitium.
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Maintain the hypoosmolarity in the medullary pyramid.
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Prevent water removal from the interstitium.
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Allow urine & NaCl to pass to the circulation.
Question 13
Question
Kidney can excrete diluted urine when:
Answer
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One drinks small amount of water.
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Drinking a hypotonic fluid.
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ADH secretion is stimulated.
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Both B & C.
Question 14
Question
Acetazolamide is:
Answer
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Drug used to increase rate of urine production.
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Inhibits carbonic anhydrase enzyme.
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Block Na+ - K+ - Cl-- co-transporter.
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Both A & B.
Question 15
Question
Which of the following increase Na+ reabsorption:
Answer
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Aldosterone.
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Estrogen.
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Glucocorticoid.
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All of the above.
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