Urinary Set 61-74

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61. Conscious control of micturition inhibits the micturition reflex by using nerve centers in the
A. medulla oblongata.
B. spinal cord.
C. brainstem and cerebral cortex.
D. pons and hypothalamus.
E. kidneys and bladder.

C. brainstem and cerebral cortex.

62. Nocturnal enuresis is
A. a type of hormone made in the heart.
B. bedwetting.
C. kidney damage from a toxin that E. coli produces.
D. a form of kidney cancer.
E. an infection.

B. bedwetting

63. The micturition reflex can be voluntarily controlled by the
A. person controlling contraction and relaxation of the pyloric sphincter valve.
B. sympathetic impulses stimulating the internal urethral sphincter valve.
C. cerebral cortex stimulating or inhibiting the external urethral sphincter valve.
D. voluntary contractions or inhibition of the prostate gland.
E. spinal cord

C. cerebral cortex stimulating or inhibiting the external urethral sphincter valve

64. Females are at higher risk of contracting a urinary tract infection because
A. the female urethra is shorter than the male's.
B. the female urethra is longer than the male's.
C. women sit down to urinate.
D. women use toilet paper when they urinate.
E. the female urethra is wider than the male's.

A. the female urethra is shorter than the male's

65. Kidney stones are least likely to be composed of
A. uric acid.
B. calcium oxalate.
C. cholesterol.
D. magnesium phosphate.
E. calcium phosphate

C. cholesterol.

66. Kidney cells die as early as age
A. 20.
B. 30.
C. 40.
D. 50.
E. 60

A. 20.

67. Kidney shrinkage with age is due to
A. spooling of collecting ducts.
B. loss of glomeruli.
C. merging of proximal and distal convoluted tubules.
D. proliferating nephron loops.
E. loss of fat and muscle.

B. loss of glomeruli.

68. Which of the following does not occur with aging of the urinary system?
A. decreased GFR.
B. renal tubules become encased in fat.
C. fibrous connective tissue accumulates around the kidney capsule.
D. nephrons invert.
E. decrease in surface area for filtration

D. nephrons invert.

69. The story of Balkan endemic nephropathy indicated that
A. a toxin in food can damage kidneys and cause kidney cancer.
B. kidney disease only affects people in Croatia.
C. drinking too much alcohol can strain the kidneys.
D. a terrorist can poison peoples' urinary systems by putting bacteria in the water supply.
E. kidneys can regenerate

A. a toxin in food can damage kidneys and cause kidney cancer.

70. Chronic glomerulonephritis is inflammation of the
A. glomerular capsule.
B. peritubular capillaries.
C. glomerular capillaries.
D. collecting ducts.
E. bladder.

C. glomerular capillaries

71. Hemodialysis is also called
A. an artificial kidney.
B. a bionic nephron.
C. a kidney transplant.
D. a bone marrow transplant.
E. an artificial liver.

A. an artificial kidney

72. During a kidney transplant procedure, the renal artery and vein of the donor kidney are connected to the recipient's
A. renal artery and vein.
B. iliac artery and vein.
C. aorta and inferior vena cava.
D. aorta and portal vein.
E. bladder.

B. iliac artery and vein.

73. As a consequence of widespread edema, blood volume
A. increases and blood pressure drops.
B. decreases and blood pressure drops.
C. increases and blood pressure rises.
D. decreases and blood pressure rises.
E. remains the same.

B. decreases and blood pressure drops.

74. The new parents are stunned at the state of their newborn's soiled diaper - it is blue! What might be the cause of the odd diaper stain?
A. ADH deficiency
B. A defect in transport of the amino acid tryptophan in the small intestine
C. A buildup of uric acid in the blood.
D. The baby ate a crayon.
E. E. coli poisoning

B. A defect in transport of the amino acid tryptophan in the small intestine

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