Heart Terms Crossword Puzzle

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QUESTIONS LIST: depolarization : contraction of heart muscle cells, conductivity : ability of the heart to receive and transmit an impulse, systole : contraction phase of the cardiac cycle, polarization : heart muscle cells are at resting peak energy, contractility : ability of the heart to shorten in response to a stimulus, automaticity : ability of the heart to initiate an electrical impulse, diastole : relaxation (refill) phase of the cardiac cycle, excitability : ability of the heart to respond to an impulse, repolarization : relaxing of the heart muscle cells, parasympathetic : branch of the autonomic nervous system decreasing hr, sympathetic : branch of the autonomic nervous system increasing hr