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HCT Chapter 11
Term | Definition |
---|---|
Cardioversion | Restoration of normal heart rhythm by electrical shock |
Contract | Shorten, reduce in size |
Coronary | Pertaining to the heart; coronary arteries supply blood to the heart muscle |
Diastole | Dilation of the heart; resting phase or filling of the ventricles, alternating with systole |
Infarction | An area of tissue death (necrosis) caused by loss of oxygen (ischemia) as a result of obstruction of circulation to the area |
Pulmonary circulation | Carrying venous blood from the right ventricle to the lungs and returning oxygenated blood to the left atrium of the heart |
Rate | Expression of speed or frequency of an event in relation to a specified amount of time; number of contractions of the heart per minute |
Rhythm | Measured movement; recurrence of an action or function at regular intervals; interval of heart contractions |
Stenosis | Narrowing or stricture of a duct or canal |
Stethoscope | Instrument used to listen to body sounds (auscultation), such as the heartbeat |
Systemic circulation | General circulation; carrying oxygenated blood from the left ventricle to tissues of the body and returning the venous blood to the right atrium of the heart |
Systole | Filling of the atria and contraction of the ventricles of the heart, alternating with diastole |
Vessel | Any one of many tubules in the body that carry fluid |