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Identify the component of the cardiac conduction system labeled A

What process occurs in A

Identify the blood cell labeled B

Identify the blood vessel labeled B

During the repolarization phase of the action potential of cardiac contractile cells ____exits the cells

Identify the organ labeled B

After blood flows through the pulmonary trunk it goes to the ________

If the pulmonary semilunar valve did not close there would be a backflow of blood into

After blood flows through the tricuspid valve it goes to the ________.

Blood within the superior/inferior vena cava returns to the ________.