The fibrous skeleton of the heart is important because it
A) forces electrical activity to be conducted through the atrioventricular node.
B) transmits electrical activity from the atria to the ventricles.
C) helps guide the blood into the proper chambers in sequence.
D) directs the flow of blood into the arteries.
Correct Answer:
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Q27: The end of the plateau phase is
Q28: ECGs
A) provide direct information about the heart
Q29: The importance of the plateau phase of
Q30: When the heart is in fibrillation,
A) the
Q31: The AV node is important because it
A)
Q33: Myocardial cells can generate action potentials spontaneously
Q34: In the condition known as complete heart
Q35: If channels are permeable to
A) Na⁺ only.
B)
Q36: The action potentials of myocardial autorhythmic cells,
Q37: A typical action potential of a myocardial
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