9) What organ provides the major control for homeostasis of body fluids?
a. Liver
b. Heart
c. Kidneys
d. Skeletal muscle
e. Pancreas
10) What is the primary mechanism associated with the role of fluoride in prevention of
dental caries?
a. Fluoride increases calcium absorption, which increases crystal formation of teeth
b. Decay is inhibited due to neutralization of organic acids produced by bacteria on the
teeth
c. Decay is reduced due to the inhibitory effects of fluoride on growth of bacteria on the
teeth
d. Fluoride becomes incorporated into the crystalline structure of teeth, making them
less susceptible to decay
e. Fluoride increases salivation which aids in the removal of bacteria and the foods
needed to sustain bacterial growth
11) A subclinical nutrient deficiency is defined as one that ____.
a.shows overt signs
b.is in the early stages
c.shows resistance to treatment
d.is similar to a secondary deficiency
e.is of acute onset
12) Almost all (99%) of the calcium in the body is used to
a. provide energy for cells.
b. provide rigidity for the bones and teeth.
c. regulate the transmission of nerve impulses.
d. maintain the blood level of calcium within very narrow limits.