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12 Cards in this Set
- Front
- Back
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Acute coronary syndrome
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rupture of a plaque in a coronary artery, from which an obstructive thrombus rapidly forms
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Afterload
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resistance to ejection of the blood from the ventricle
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AV node
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secondary pacemaker of the heart, located in the right atrial wall near the tricuspid valve
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Baroreceptors
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nerve fibers located in the aortic arch and carotid arteries… responsible for reflex control of the blood pressure
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Cardiac cath
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invasive procedure used to measure cardiac chamber pressure and assess patency of the coronary arteries
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Cardiac output
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amount of blood pumped by each ventricle in liters per minute
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Contractility
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ability of the heart muscle to shorten in response to electrical impulse
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Depolarization
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influx of sodium into the cell and potassium out, causing electrical activation
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Diastole
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period of ventricular relaxation resulting in ventricular filling
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Ejection fraction
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% of the end-diastolic blood volume ejected from the ventricle with each heartbeat
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Opening snaps
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abnormal diastolic sound generated during opening of a rigid AV valve leaflet
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Systolic click
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abnormal systolic sound created by the opening of a calcified aortic or pulmonic valve during ventricular contraction
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