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ECG Glossary C-E
ECG Glossory Quiz 2 C-E
Question | Answer |
---|---|
Amount of blood pumped by the heart per minute | Cardiac output |
Pertaining to the heart & blood vessels | Cardiovascular |
Specialized nerve end organs producing a slight dilatation of the carotid artery where it branches into the external and internal carotid arteries, responding to changes in blood pressure by mediating changes in the heartbeat rate. | Carotid sinus |
Fibrous cords which serve as guide ropes to hold the valves between the upper & lower chambers of the heart secure when forced closed by pressure of blood in the lower chembers | Chordae tendinae |
An operation to widen the opening in a heart valve which has become narrowed by scar tissue. Individual flaps of the valve are cut or spread apart along the natural line of their closure. Often cases of rheumatic heart disease | Commissurotomy |
When the heart is unable to adequately pump out all blood that returns to it there is a backing up of blood in the veins leading to the heart. Also called myocardial insufficiency | Congestive heart failure |
Two arteries arising from the aorta, arching down over the top of the heart, and conducting blood of the heart muscle | Coronary arteries |
Obstruction in a branch of one of the coronary arteries which hinders the flow of blood to some part of the heart muscle. Sometimes called a coronary heart attack, or simply heart attack | Coronary occlusion |
Formation of a clot in a branch of one of the arteries which conduct blood to the heart muscle. A form of coronary oocclusion | Coronary thrombosis |
Heart disease resulting from disease of the lungs or the blood vessels in the lungs. This is due to resistance to the passage of blood through the lungs | Cor pulmonale |
Blueness of the skin caused by insufficient oxygen in the blood | Cyanosis |
Inability of the heart to maintain adequate circulation, usually resulting in a waterlogging of tissues. | Decompensation |
Any agent or measure such as an electric shock which stops an incoordinate contraction of the heart muscle and restores a normal heart beat | Defibrillator |
Two different types of congenital phenomena are often described as dextrocardia. 1 - The heart is slightly rotated and lies almost entirely in the right side of the chest. 2 - Where there is a complete transposition of the heart. (Mirror image) | Dextrocardia |
One total heart beat | Cardiac cycle |
In each heart beat, the period of relaxation of the heart | Diastole |
A drug prepared from the leaves of the foxglove plant which strengthens the contraction of the heart muscle, slows the rate of contraction of the heart | Digitalis |
A stretching or enlargement of the heart or blood vessels beyond the norm | Dilation |
Difficult or labored breathing | Dyspnea |
Swelling due to abnormaally large amounts of fluid in the tissues of the body | Edema |
An electric device that can control the beating of the heart by a rhythmic discharge of electrical impulses | Electric cardiac pacemaker |
Often referred to as EKG or ECG. A graphical record of the electric currents produced by the heart | Electrocardiogram |
An instrument which records electric currents produced by the heart | Electrocardiograph |
Any substance which, in solution, is capable of conducting electricity by means of its atoms or groups of atoms, and in the process is broken down into pos. and neg. charged particles | Electrolyte |
The blocking of a blood vessel by a clot or other substance carried in the blood stream | Embolism |
Inflammation of the inner layer of the heart (endocardium) usually associated with acute rheumatic fevers or some infectionious agents | Endocarditis |
A thin, smooth membrane forming the inner surface of the heart | Endocardium |
The outer layer of the heart wall. Also called visceral pericardium | Epicardium |
Secretion from the adrenal gland, also called adrenalin, constricts the small blood vessels (arterioles), increases the rate of the heart beat, raises BP. Also called a vasoconstrictor or vasopressor. | Epinephrine |
Red blood cell | Erythrocyte |
An elevated BP not caused by kidney or other evident disease. Sometimes called primary hypertension, commonly known as high BP. | Essential hypertension |
The sum of knowledge about the causes of a disease | Etiology |
Circulation of the blood outside the body as by a mechanical pump-oxygenator | Extracorporeal circulation |
A contraction of the heart which occurs prematurely and interrupts the normal rhythm | Extrasystole |