The P wave of the electrocardiogram is a signal from
A) the SA node.
B) depolarization of the AV node.
C) depolarization of the atria.
D) repolarization of the atria.
E) depolarization of the ventricles.
Correct Answer:
Verified
Q82: Depolarization of the ventricles is represented on
Q83: Figure 20-1 The Heart Q84: If there is a complete block between Q85: Cardiac muscle cells and skeletal muscle cells Q86: The following are structural components of the Q88: If the connection between the SA node Q89: In cardiac muscle, the fast depolarization phase Q90: The long plateau phase of the cardiac Q91: Figure 20-1 The Heart Q92: Tetanic muscle contractions don't occur in a
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