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ECG Glossary E - I

ECG Glossary Quiz 3 E - I

Swelling due to fluid in the tissues Edema
An electric device that can control the beating of the heart by a rhythmic discharge of electrical impulses Electric cardiac pacemaker
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. (Examples: Sodium - Potassium) Electrolyte
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 infectious agents Endocarditis
A thin, smooth membrane forming the inner surface of the heart Endocardium
Outer layer of the heart wall. (Also called visceral pericardium) Epicardium
A secretion of the adrenal gland that constricts the small blood vessels (arterioles), increases the rate of the heartbeat, and raises blood pressure. (Also called a vasoconstrictor or vasopressor) Epinephrine
Red blood cell Erythrocyte
Elevated BP not caused by kidney or other evident disease. (Sometimes called primary hypertension) Essential hypertension
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
Main blood vessel supplying blood to the leg Femoral artery
Uncoordinated contractions of the heart muscle occuring when the individual muscle fibers take up independent irregular contractions Fibrillation
An extra heart sound which, when the heart rate is fast, resembles a horse's gallop Gallop rhythm
Interference with the conduction of the electrical impulses of the heart which can be either partial or complete. Can result in dissociation of the rhythms of the upper & lower heart chambers Heart block
A machine through which the blood stream is diverted for pumping and oxygenation while the heart is opened for surgery Heart-Lung machine
The study of the flow of blood & forces involved Hemodynamics
Loss of blood from a blood vessel. (External - Blood escapes from the body; Internal - Blood passes inti tissues) Hemorrhage
A chemical substance which tends to prevent blood from clotting. (An Anticoagulant) Heparin
German anatomist who discovered bundle of muscle fibers running from the upper to lower chambers of the heart. (Known as the bundle of His) His, Wilhelm
An unstable or persistent elevation of blood pressure above the normal range, which may eventually lead to increased heart size and kidney damage Hypertension
Enlargement of a tissue or organ due to increase in the size of its constituent cells Hypertrophy
Most commonly used to describe an acute fall in blood presssure, as occurs in shock. BP below the normal range or low BP. Hypotension
Less than normal content of oxygen in the organs & tissues of the body. (Can be caused by high altitude) Hypoxia
Also called valvular insufficiency; Any valve that does not close tight and leaks blood back in the wrong direction. Incompetent valve
An area of a tissue which is damaged or dies as a result of not receiving a sufficient blood supply. infarct
Muscular wall dividing left and right upper chambers of the heart which are called atria. Sometimes called auricular septum or interauricular septum or atrial septum Inter-atrial septum
Muscular wall, tinnera t the top, dividing the left and right lower chambers of the heart called ventricles. Sometimes called ventricular septum. Inter-ventricular septum
A local, usually temporary, deficiency of blood in some part of the body, often caused by a constriction or an obstruction in the blood vessel supplying that part Ischemia
Created by: ct program