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What are the three steps of the "w… | HESI A2 Practice | QuizRN | QuizRN
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HESI A2
anatomy physiology
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HESI-A2
anatomy physiology
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QRN-HESIA2-79C6F402EB
What are the three steps of the "wave of excitation" that occurs during a heartbeat?
Answer choices
A.
The discharge of the SA node, the peak of the ECG reading, and the excitation of the ventricle.
B.
The excitation of the ventricle, the relaxation of the ventricle, and the systemic neural response.
C.
The contraction of the atrium, the relaxation of the atrium, and the contraction of the ventricle.
D.
The excitation of the atrium, the excitation of the ventricle, and the relaxation of the ventricle.
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