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kinn's Chapter 49

atria The two upper chambers of the heart.
atrioventricular (AV) node The part of the cardiac conduction system between the atria and the ventricles.
bundle of His Specialized muscle fibers that conduct electrical impulses from the AV node to the ventricular myocardium.
cardiac arrest A condition in which cardiac contractions stop completely.
cardioversion The use of electroshock to convert an abnormal cardiac rhythm to a normal one.
defibrillator A machine that delivers an electroshock to the heart through electrodes placed on the chest wall.
ectopic Originating outside of the normal tissue.
infarction An area of tissue that has died from lack of blood supply.
ischemia Decreased blood flow to a body part or organ, caused by constriction or blockage of the supplying artery.
myocardial Pertaining to the heart muscle.
sinoatrial (SA) node The pacemaker of the heart; it is located in the right atrium.
ventricles The two lower chambers of the heart.
Created by: mrsdancona