#Purkinje_fiber  a specialized cardiac muscle fiber that is part of the Purkinje network
  supertype:  cardiac_muscle__cardiacmuscle__heart_muscle__heartmuscle  the muscle tissue of the heart; adapted to continued rhythmic contraction
  part of:  Purkinje_network__Purkinje's_tissue__Purkinje's_system  a network of Purkinje fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the heart and causes them to contract

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