30

1.) the main filter of the nephron is the..
a. tubule cells
b. glomerulus
c. mass tubing
d. renal tubule

2.) water accounts for the highest percentage of body mass
a. younger men
b. older men
c. younger women
d. older women

3.) which of the following statements is not true for the urinary system?
a. the bladder has a diminished capacity because of atrophy, decrease in size, and decrease of elasticity with age.
b. renal function does not change as adults move into later adulthood
c. with age, incontinence is a progressive problem
d. renal function declines as people move into later adulthood

4.) aldosterone decreases reabsorption.
a. potassium
b. sodium
c. bicarbonate
d. water

5.) which of the following statements is not true for the urinary system?
a. the glomerular filtration rate gradually decreases with age
b. in infants, the ureters are short and the bladders are very close to the abdominal wall
c. renal function does not fully mature until about 1 year of age, so infants can not handle large amounts of protein intake
d. men get urinary tract infections in adulthood more easily than women because of the construction of their urethra

6.) urea, ammonia, and creatinine are examples of
a. solutes normally found in urine
b. metabolic acids
c. nitrogen- containing wastes
d. antidiuretic hormones

7.) damage to the renal tubular cells because of toxins in the urine is called
a. renal cell carcinoma
b. acute tubular necrosis
c. nephritic syndrome
d. hematuria
8.) the majority of the responsibility for eliminating toxins from the body lies with the
a. lungs
b. bladder
c. skin
d . kidneys

9.) blood in the urine is called
a. hematuria
b. renal cell carcinoma
c. nephritic syndrome
d. acute tubular necrosis

10.) which of the following is not an organ found in the urinary system?
a. kidney
b. pancreas
c. ureter
d. urethra