PCC 4 Exam 1|166 Questions with 100% Correct Answers | Updated & Verified

contractile cells - ️️working cells responsible for mechanical muscle action of heart pacemaker cells - ️️cells in electrical conduction system responsible for generating electrical impulses excitability - ️️ability to respond to an electrical impulse conductivity - ️️ability to conduct an electrical impulse SA node - ️️what is the primary pacemaker of the heart? resting state - ️️outside of cell positive compared to inside depolarization - ️️inside of cell positive compared to outside dysrhythmia - ️️disturbance of heart rhythm ectopic pacemaker - ️️pacemaker that bypasses the normal conduction pathway such as non pacemaker cardiac cells in the atria, AV junction, or ventricles cardiac output - ️️a dysrhythmia is a problem when it impacts _________. 48 hours - ️️how long does someone need to have afib before needing an anticoagulant?