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Which of These Will Increase the Heart Rate

Question 18

Multiple Choice

Which of these will increase the heart rate?


A) only sympathetic stimulation to the SA node
B) only the application of epinephrine to the SA node
C) only the application of acetylcholine to the SA node
D) both sympathetic stimulation and application of epinephrine to the SA node
E) both sympathetic stimulation and application of acetylcholine to the SA node

Correct Answer:

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