The heart valves are innervated by the autonomic nervous system.
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Q79: At rapid heart rates,
A) the lengths of
Q80: An insufficient AV valve
A) fails to open
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Q83: The action potential spreads through the atria
Q85: Which number on the diagram represents an
Q86: The function of the chordae tendineae and
Q87: The difference between which two numbers on
Q88: The tricuspid prevents regurgitation of blood from
Q89: The functional syncytia of the myocardium is
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