The nurse educator is teaching a group of nurses the principles of the immune system. Which of the following statements by a nurse in the class best demonstrates understanding of these principles?
"The classic pathway of the complement system is activated by
a. bacterial toxins."
b. antigens."
c. cytotoxic killer cells."
d. antibodies."
ANS: D
Antibodies activate the classic pathway of the complement system.
Bacterial toxins, antigens, and cytotoxic killer cells do no activate the classic pathway of the complement system.
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