Which of the following is not true?
A. The cardiac nerves carry parasympathetic innervation to the heart.
B. The vagus nerves carry parasympathetic innervation to the heart.
C. Without vagus nerve innervation, the heart rate would be about 100 beats per minute.
D. Fibers of the vagus nerves lead to the SA and AV nodes.
E. Sympathetic innervation increases the speed and force of contraction.
Answer: A
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