During an infection, lymph nodes enlarge and become tender because:
a. lymphocytes are rapidly dividing.
b. edema accumulates within the fibrous capsule.
c. microorganisms are accumulating.
d. the nodes are not functioning properly.
ANS: A
During an infection, the rate of proliferation of lymphocytes within the nodes is so great that the nodes enlarge and become tender. Edema may be present, but the tenderness is due to prolifera-tion of lymphocytes and is a normal function of the nodes. The tenderness is not due to the mi-croorganisms.
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