19) Which of the following is a function of sphincter muscles?
a.Control peristalsis
b.Grind large food particles
c.Secrete digestive juices into the GI tract
d.Control the passage of food through the GI tract
20) Which of the following is a feature of sports anemia?
a.It is not a true iron-deficiency anemia
b.It is usually corrected by iron supplementation
c.It is found primarily in over-conditioned athletes
d.It is associated with reduced cardiorespiratory fitness
21) Why shouldnt vitamin E supplements be taken for at least one week before surgery?
a.Vitamin E interferes with barbiturate pain medications
b.The antioxidant activity affects stability of most anesthetic agents
c.Vitamin E acts as a blood thinner and could lead to excessive bleeding
d.The antioxidant activity interferes with synthesis of replacement erythrocytes
22) Which of the following is a feature of potassium supplements?
a.Can cause toxicity
b.Should always be taken with diuretics
c.Necessary in treatment of low blood pressure
d.Absorption of the mineral decreases markedly as intake increases
23) What term is specific to reactions in which simple compounds are combined into
more complex molecules?
a.Anabolic
b.Catabolic
c.Ergogenic
d.Gluconeogenic