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AP MOD. I-Heart
Term | Definition |
---|---|
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. |