TTU A&P2 PhysioEx Quiz 8 – Exercise 9 Renal Physiology – Flashcards
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Which structures form the filtration membrane in the nephron?
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glomerulus and the glomerular capsule
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Which of the following resulted in an increase in glomerular filtration rate?
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decreasing the efferent arteriole diameter and increasing the afferent arteriole diameter
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Which of the following resulted in a decrease in glomerular capillary pressure?
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increasing the efferent arteriole diameter and decreasing the afferent arteriole diameter
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What is the normal range for glomerular filtration rate?
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80 - 140 ml/min
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As the pressure in the beaker was increased, which of the following occurred?
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Glomerular filtration rate increased, and urine volume increased.
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The pressure in the left source beaker simulates _______.
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blood pressure
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With the valve between the collecting duct and the urinary bladder closed, _______.
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urine volume was zero
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With the valve between the collecting duct and the urinary bladder closed and with the pressure increased, _______.
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the glomerular filtration rate increased and the glomerular pressure increased
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When the beaker pressure was lowered, which of the following decreased?
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glomerular pressure, glomerular filtration rate and urine volume
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When blood pressure increases, what changes can occur to maintain glomerular filtration rate?
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constriction of the afferent arteriole and dilation of the efferent arteriole
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When the efferent arteriole constricts, _______.
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the back pressure in the Bowman's capsule increases
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What happened to the urine volume when the solute gradient in the interstitial space was increased?
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The urine volume decreased.
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What happened to the urine concentration when the solute gradient in the interstitial space was increased?
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The urine concentration increased.
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What will happen to the urine volume if ADH is NOT added to the collecting duct?
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The urine volume will increase.
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As the number of glucose carriers increased, the concentration of glucose in the _______.
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distal tubule decreased and bladder decreased
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At which concentration of glucose carriers was the glucose concentration reduced to zero?
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400
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When the glucose transport maximum is reached, _______.
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glucose is excreted in the urine and not all of the glucose is reabsorbed
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The addition of aldosterone _______.
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decreased the urine volume
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With ADH added but in the absence of aldosterone, _______.
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the potassium concentration increased and urine volume decreased
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The urine was the most concentrated _______.
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with both ADH and aldosterone
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Which hormone had the greater effect on urine volume?
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ADH
