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27 Cards in this Set
- Front
- Back
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arrhythmia
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being without rhythm; (sinus arrhythmia) is a regular variation in H.R caused by changes in the rate and depth of breathing. normal phenomenon
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atherosclerosis
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thickening and hardening of the arteries with plague
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atrium
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left and right receiving chambers
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bradycardia
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slower rate than usual; less than 60 beats per minute.
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coronary
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pertaining to a crown like the veins and arteries of the heart
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coronary thrombosis
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thrombus formation results in life threatening condition
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diastole
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resting phase
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echocardiograph
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uses ultrasound to record pictures of heart in action
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electrocardiography
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records electrical activity as waves
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endocardium
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thin inner layer of epithelium
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epicardium
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thin outer layer of serous membrane (also called visceral pericardium)
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fibrillication
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an episode of rapid, wild, and uncoordinated heart muscle contractions
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infarct
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the tissue damaged in a heart attack
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ischemia
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narrowing of blood vessels leads to ischemia, a lack of blood supply to tissues
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murmur
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abnormal
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myocardium
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the heart muscle
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pacemaker
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SA node; because it sets the rate of heart contractions
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pericardium
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sac that encloses the heart
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plaque
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progressive deposit of fatty material
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septum
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the hearts chambers are completely separated from eachother by partitions
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inter atrial sptum
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separates the two atria
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inter ventricular septum
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separates the two ventricles.
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stenonsis
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narrowing of a duct or canal
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systole
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contraction phase
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tachycardia
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heart rate more that 100 beats per minute
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valve
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structure that prevents fluid from flowing backward, as in the heart, veins, and lymphatic vessels
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ventricle
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cavity or chamber; on of the two lower chambers of the heart;
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