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AP MOD. I-Heart

TermDefinition
systole contraction of the heart
diastole relaxation of the heart
tricuspid valve valve at the opening of teh right atrium into the ventricle
bicuspid valve (mitral)-valve at the opening of the left atrium into the ventricle.
incompetent valves "leaky valves"-allow blood to flow backward into the chamber from which it came
stenosed valves valces that are narrower than normal
rheumatic heart disease cardiac damage caused by strep infection
mitral valve prolapse (MVP)-incompetent mitral valve
heart murmurs abnormal heart sounds
atherosclerosis type of hardening of the arteries
angina pectoris chest pain
electrocardiograph machine that produces electrocardiograms
electrocardiogram graphic record of the heart's electrical activity
cardiac dysrhythmia abnormality of heart rhythm
heart block conduction of impulses is blocked
bradycardia slow heart rate
tachycardia rapid heart rate
sinus dysrhythmia variation in heart rate during breathing cycle
fibrillation cardiac muscle fibers are "out of step" and produce no pumping action
left heart failure congestive heart failure (CHF)
heart failure ianbility to pump enough returned blood to sustain life.
Created by: ddoyon