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ECG Glossary C-E

ECG Glossory Quiz 2 C-E

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
Created by: ct program