To account for their effects on osmotic pressure, the concentration of electrolytes is often expressed in
A. moles.
B. moieties.
C. milliequivalents per liter.
D. moles per liter.
E. milliliters.
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Question 2) The most abundant cation within cells is
A. sodium.
B. potassium.
C. calcium.
D. chloride.
E. magnesium.
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Question 3) The hormone ANP
A. increases urine output and increases blood volume.
B. increases urine output and decreases blood volume.
C. decreases urine output and decreases blood volume.
D. decreases urine output and increases blood volume.
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Question 4) A substance that dissociates in water to form cations and anions is called a nonelectrolyte.
Indicate whether this statement is true or false.
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Question 5) . Changes in blood osmolarity that turn off the thirst center also increase the release of ADH from the pituitary gland.
Indicate whether this statement is true or false.
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Question 6) Which of the following does not turn off the thirst center of the brain?
A. Decreased blood osmolarity
B. Entry of fluid in the stomach
C. Decreased salivary secretions
D. Increased blood pressure
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Question 7) Distention of the stomach causes thirst to
A. increase.
B. decrease.
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Question 8) When compared with the effects of blood pressure and osmolarity on fluid intake, the effects of saliva and stomach distention are
A. more immediate and more accurate.
B. more immediate but less accurate.
C. more long-term and more accurate.
D. more long-term but less accurate.
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Question 9) The thirst center of the brain is located in the
A. hippocampus.
B. hypothalamus.
C. occipital lobe.
D. pons.
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Question 10) Fluid intake causes blood volume to increase.
Indicate whether this statement is true or false.
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