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Cardiovascular System -Q – Cardiac Conduction Term & A – Meaning

QuestionAnswer
the pacemaker; highly specialized, neurological tissue impeded in the wall of the right atrium; responsible for initiating electrical conduction of the heartbeat, causing the atria to contract and firing conduction of impulses to the AV node sinoatrial (SA) node
neurological tissue in the center of the heart that receives and amplifies the conduction of impulses from the SA node to the bundle of His atrioventricular (AV) node
neurological fibers extending from the AV node to the right and left bundle branches that fire the impulse from the AV node to the Purkinje fibers bundle of His
fibers in the ventricles that transmit impulses to the right and left ventricles, causing them to contract Purkinje fibers
resting; resting state of a myocardial cell polarization
change of a myocardial cell from a polarized (resting) state to a state of contraction (de = not; polarization = resting) depolarization
recharging of the myocardial cell from a contracted state back to a resting state (re = again; polarization = resting) repolarization
regular rhythm of the heart cycle stimulated by the SA node (average rate of 60–100 beats/minute) (see Fig. 5-11) normal sinus rhythm (NSR)
the pacemaker; highly specialized, neurological tissue impeded in the wall of the right atrium; responsible for initiating electrical conduction of the heartbeat, causing the atria to contract and firing conduction of impulses to the AV node sinoatrial (SA) node
neurological tissue in the center of the heart that receives and amplifies the conduction of impulses from the SA node to the bundle of His atrioventricular (AV) node
neurological fibers extending from the AV node to the right and left bundle branches that fire the impulse from the AV node to the Purkinje fibers bundle of His
fibers in the ventricles that transmit impulses to the right and left ventricles, causing them to contract Purkinje fibers
resting; resting state of a myocardial cell polarization
change of a myocardial cell from a polarized (resting) state to a state of contraction (de = not; polarization = resting) depolarization
recharging of the myocardial cell from a contracted state back to a resting state (re = again; polarization = resting) repolarization
regular rhythm of the heart cycle stimulated by the SA node (average rate of 60–100 beats/minute) (see Fig. 5-11) normal sinus rhythm (NSR)
Created by: shachi.pandit