1. The fluid inside of cells is called
extracellular fluid.
intracellular fluid.
plasma.
interstitial fluid.
transcellular fluid.

2. In lean adults, 55 to 60% of the total body mass is made up of
salt.
protein.
carbohydrates.
water.
fat.

3. The major hormone that regulates water loss is
ANP.
aldosterone.
angiotensin II.
ATP.
ADH.

4. Which hormone stimulates increased loss of water in urine?
Angiotensin II
Aldosterone
Atrial natriuretic peptide
Antidiuretic hormone

5. An increase in the rate and depth of breathing will ___ CO2 concentrations in body fluids.
not affect
increase
decrease
All of these answer choices are correct

6. The most abundant anion in extracellular fluid is
sodium.
chloride.
sulfate.
protein.
phosphate.

7. What is the approximate percentage of fluid in the ECF and ICF fluid compartments?
ECF = 67%; ICF = 33%
ECF = 33%; ICF = 67%
ECF = 50%; ICF = 50%
ECF = 80%; ICF = 20%

8. Water loss in urine would decrease with
high levels of ANP.
high levels of ADH.
low levels of angiotensin II.
low levels of aldosterone.

9. Electrolytes
carry electrical currents allowing for production of action potentials.
control the osmosis of water between fluid compartments.
help maintain the body's acid-base balance.
are involved in all of these choices

10. What are the major physiological effects of acidosis and alkalosis?
acidosis: depression of CNS; alkalosis: overexcitability in the CNS and peripheral nerves
acidosis: decreased respiration; alkalosis: increased kidney filtration
acidosis: muscle spasms; alkalosis: confusion
acidosis: overexcitability in the CNS and peripheral nerves; alkalosis: depression of CNS