2330552
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Quiz von #أطباء_2020 , aktualisiert more than 1 year ago
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Erstellt von #أطباء_2020
vor fast 10 Jahre
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Frage 1
Frage
The arteries which run between the medullary pyramids:
Antworten
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Arcuate arteries.
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Interlobular arteries.
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Interlobar arteries.
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Renal artery.
Frage 2
Frage
Regarding renal plasma clearance:
Antworten
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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.
Frage 3
Frage
Glomerular filtration rate:
Antworten
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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.
Frage 4
Frage
Decreased renal blood flow will lead to:
Antworten
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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.
Frage 5
Frage
Sever constriction of efferent arterioles leads to:
Antworten
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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.
Frage 6
Frage
GFR is:
Antworten
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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.
Frage 7
Frage
According amino acids reabsorption:
Antworten
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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.
Frage 8
Frage
65% of filtered water is reabsorbed in:
Antworten
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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.
Frage 9
Frage
Which of the following is true about Loop of Henle:
Antworten
-
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.
Frage 10
Frage
The thick ascending limb of loop of Henle:
Antworten
-
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.
Frage 11
Frage
Regarding renal counter current mechanism:
Antworten
-
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.
Frage 12
Frage
The function of the countercurrent exchanger system in vasa recta:
Antworten
-
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.
Frage 13
Frage
Kidney can excrete diluted urine when:
Antworten
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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.
Frage 14
Frage
Acetazolamide is:
Antworten
-
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.
Frage 15
Frage
Which of the following increase Na+ reabsorption:
Antworten
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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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