A polypeptide that mediates inflammation, increases vasodilation, and contracts smooth muscle is known as:
A. bradykinin
B. prostaglandin
C. histamine
D. serotonin
a
Rationale: Bradykinin is the polypeptide discussed in this chapter that mediates inflammation, increases vasodilation, and contracts smooth muscle.
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Mortality refers to the rate of:
a. death. b. diseases. c. infectious diseases. d. disease in Third World countries.
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What may happen if the irritant receptors in the lung are stimulated? 1. Bronchoconstriction 2. Reflex closure of the glottis 3. Reflex slowing of the heart (bradycardia)
a. 2 and 3 only b. 1 and 3 only c. 2 only d. 1, 2, and 3
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