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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. |