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Q12: has the fastest rate of pacemaker activity
Q15: The functional syncytia of the myocardium are
Q59: On a normal ECG, a wave for
Q60: Cholesterol is a common precursor for polypeptide
Q106: In smooth muscle, Ca<sup>2+</sup> binds with the
Q123: Describe the cardiac cycle.
Q139: found in the heart
Q143: The role of MSH in humans is
Q255: The heart muscle receives its oxygen and
Q256: Slow inward diffusion of _ is largely