Which of the following is an effect of parasympathetic activity to the heart?
A) cAMP is activated.
B) Heart rate is increased.
C) Postganglionic neurons release acetylcholine, which binds to nicotinic cholinergic receptors in the SA node.
D) SA nodal cells are depolarized.
E) The rate of spontaneous depolarization in SA nodal cells decreases.
Correct Answer:
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