If bile is not excreted properly the result is

1.   ?    cirrhosis
2.   ?    jaundice
3.   ?    dirrarhea
4.   ?    constipation

which of these is not part of the urinary system

1.   ?    kidneys
2.   ?    bladder
3.   ?    large intestine
4.   ?    ureters

the outer part of the kidney is called the

1.   ?    cortex
2.   ?    medulla
3.   ?    pelvis
4.   ?    ileum

each of the kidneys has about how many nephrons

1.   ?    2 million
2.   ?    1.5 million
3.   ?    1.25 million
4.   ?    1.75 million

the kidney forms about how many liters of filtrate in 24 hours

1.   ?    125
2.   ?    200
3.   ?    160
4.   ?    180

Urine is made in the nephrons in 2 stages

1.   ?    dialysis/reabsorption
2.   ?    reabsorption/dialysis
3.   ?    filtration/reabsorption
4.   ?    reabsorption/filtration

the inner layer of the skin is called

1.   ?    epidermis
2.   ?    dermis
3.   ?    keratin
4.   ?    sebaceous

the skins major role in excretion is

1.   ?    sweat
2.   ?    carbon dioxide
3.   ?    heat
4.   ?    water

the most important work of the kidneys is

1.   ?    filtering wastes from the blood
2.   ?    removal of wastes
3.   ?    reabsorption of nutrients
4.   ?    reabsorption of wastes

urine is removed through the

1.   ?    urethra
2.   ?    ureter
3.   ?    urinary bladder
4.   ?    anus