The lining of the small intestine is covered with ________, tiny, finger-like structures that absorb nutrients from food.
A. arteries
B. lacteals
C. villi
D. neurons
Answer: C
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What additional complication of chronic pancreatitis is a concern for physicians?
a. Dehydration b. Kidney stones c. Damage to cells of the pancreas that synthesize insulin and glucagon d. Nausea
Pernicious anemia is treated most often by
A. oral supplementation of iron. B. eating liver three times a week. C. a diet high in milk and dairy products. D. regular intramuscular injection of vitamin B-12.
On a cold day, your hands, feet, and face may become cool to the touch because
A. less blood flows to the body's surface. B. water from circulating blood absorbs all heat. C. insufficient electrolytes lead to lowered body temperatures. D. increased evaporation of sweat is cooling circulating blood.
A mineral that has antioxidant functions and has been suggested to reduce cancer risk is
A. selenium. B. sulfur. C. iron. D. sodium.