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| largest type of blood vessel; carries blood away from heart to body |
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| atrioventricular bundle (bundle of His) |
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Definition
| muscle fibers that carry electric impulses to ventricles |
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Term
| atrioventricular node (AV Node) |
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Definition
| specialized tissue; electrical impulses pass from pacemaker (SA Node) through AV Node to bundle of His |
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| relaxation phase of heartbeat |
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| inner lining of the heart |
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| innermost lining of blood vessels |
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| abnormal heart sound caused by improper closure of heart valves |
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| pacemaker (sinoatrial node, SA) |
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Definition
| nervous tissue in right atrium that begins heartbeat |
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| sac-like membrane surrounding the heart |
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| instrument used to measure BP |
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| contraction phase of heartbeat |
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| yellowish plaque, fatty substance |
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