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colleen colleen
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11 years ago
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
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nite_n_daynite_n_day
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11 years ago
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colleen Author
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11 years ago
Thank you so much.
Sunshine ☀ ☼
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