14 Vocab Word Scramble
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| Question | Answer |
| Atria | Upper chambers of the heart |
| Coronary arteries | Blood vessels that supply blood to the myocardium |
| Atrioventricular node | Electrical impulses slow here to allow blood to move from the atria to the ventricles |
| Myocardium | Heart muscle |
| Sinus node | Electrical pulses begin here |
| Vena cava | Carry O2 poor blood back to the heart |
| Ventricles | Lower chambers of the heart |
| Aorta | Body’s main artery |
| Atherosclerosis | Calcium and cholesterol buildup inside blood vessels |
| Arrhythmia | Abnormal heart rhythm |
| Ischemia | Lack of O2 |
| Infarction | Tissue death |
| Tachycardia | Rapid heart rhythm, greater than 100 bpm |
| Asystole | Absence of heart electrical activity |
| Bradycardia | Unusually slow heart rhythm, less than 60 bpm |
| Thromboembolism | Blood clot floating through blood vessels until it reaches a narrow area and blocks blood flow |
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