Multiple Choice
Beta blockers are effective in treating certain cardiac arrhythmias because they _____ the excitatory effects of ______ on the heart
A) increase; acetylcholine
B) decrease; acetylcholine
C) increase; catecholamines (epinephrine and norepinephrine)
D) decrease; catecholamines (epinephrine and norepinephrine)
E) increase; beta interferons
Correct Answer:
Verified
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