Short Answer
Match the anatomical structures, labelled e., with the heart characteristics. (Options may be used more than once or not at all.)a. through
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-its fast Ca2+ channels help initiate
Correct Answer:

Verified
Correct Answer:
Verified
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