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5 Written Questions

3 Matching Questions

  1. b
  2. d
  3. c
  1. a The tubuloglomerular feedback mechanism responds to an increase in:
    systemic blood pressure by signaling for a decrease in heart rate through blood-borne hormones.
    urine production by signaling for a decrease in urine production through the hormone ADH.
    NaCl concentration in tubular fluid by signaling for afferent arteriole constriction with local chemical messengers.
    glomerular capillary hydrostatic pressure by signaling for afferent arterioles to constrict and increase filtration rate.
  2. b
    This figure shows a frontal section of the kidney. Which number(s) indicate a renal papilla?
    2, 7
    3
    6
    9
    10
  3. c ANP is a hormone that causes:
    constriction of the afferent arterioles and release of renin.
    constriction of the afferent arterioles and inhibition of renin release.
    dilation of the afferent arterioles and release of renin.
    dilation of the afferent arterioles and inhibition of renin release.

5 Multiple Choice Questions

  1. The juxtaglomerular apparatus is located:
    within the renal sinus.
    in the renal papilla.
    in the perinephric fat.
    inside the tubular pole of the glomerulus.
    near the vascular pole of the renal corpuscle.
  2. The largest possible amount of a substance that can be reabsorbed or secreted across a kidney tubule wall in a given duration of time is known as the:
    glomerular filtration rate.
    renal threshold.
    transport maximum.
    net filtration pressure.
    renal clearance exponent.
  3. Fluid contained within the lumen of a nephron loop would be considered to be:
    plasma.
    tubular fluid.
    filtrate.
    urine.
  4. Which is not a function of the kidneys?
    Regulation of blood pressure
    Removal of wastes from the blood
    Regulation of erythrocyte production
    Regulation of lymphocyte production
    Regulation of acid-base balance

  5. This figure shows a renal corpuscle. What structure does number 1 indicate?
    Distal convoluted tubule
    Collecting duct
    Nephron loop
    Proximal convoluted tubule
    Papillary duct

5 True/False Questions

  1. bNet filtration pressure is equal to the:
    capsular hydrostatic pressure plus the sum of the blood colloid osmotic pressure and the glomerular hydrostatic pressure.
    glomerular hydrostatic pressure minus the sum of the blood colloid osmotic pressure and capsular hydrostatic pressure.
    capsular hydrostatic pressure minus the sum of the blood colloid osmotic pressure and glomerular hydrostatic pressure.
    blood colloid osmotic pressure minus the capsular hydrostatic pressure.
    glomerular hydrostatic pressure plus blood colloid osmotic pressure minus capsular hydrostatic pressure.

          

  2. bBoth the proximal convoluted tubule and the distal convoluted tubule reside in the cortex of the kidney.
    True
    False

          

  3. bThe first structure in the kidney to collect newly formed urine is the:
    renal capsule.
    minor calyx.
    renal pelvis.
    renal sinus.
    renal cortex.

          

  4. cThe presence of proteins in the plasma tends to:
    push fluid across the filtration membrane.
    draw fluid back into the glomerulus.

          

  5. aThe countercurrent multiplier is a system by which the:
    nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.
    nephron loop dilutes the concentration of solutes in the tubular fluid at its hairpin turn.
    vasa recta secretes multiple amounts of metabolic wastes against their concentration gradient.
    vasa recta becomes more concentrated with nitrogenous wastes than the urine.

          

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