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EMT Cardiovascular

TermDefinition
Acute Coronary Syndrome A group of symptoms caused by myocardial ischemia; angina and MI
Acute myocardial Infarction (AMI) A heart attack; death of heart muscle following obstruction of blood flow to it.
Angina Chest discomfort caused by temporary blockage of blood flow to the heart muscle.
Asystole The complete absence of all heart electrical activity
Atheroscerosis When cholesterol and calcium build up inside the walls of blood vessels and eventually lead to partial or complete blockage of blood flow
automaticity Ability of cardiac muscle cells to contract without stimulation from the nervous system
autonomic nervous system part of the nervous system that controls the involuntary activities of the body suck as the heart rate, blood pressure and digestion of food
aorta main artery which receives blood from the left ventricle and delivers it to all the other arteries that carry blood to the tissues of the body
Atruim Right and left Atrium's are the upper chambers of the heat. Right receives blood from the vena cava and delivers to right ventricles and left receives blood from pulmonary veins and delivers it to the left ventricle
Bradycardia A slow heart rate, less that 60 beats/ min
Cardiac Arrest When heart fails to generate effective and detectable blood flow; pulses are not palpable even if electrical activity continues in the heart
Cardiac Output measure of the volumes of blood circulated by the heat in 1 min, calculated by multiplying the stroke volume by the heat rate
Cardiogenic Shock When not enough oxygen is delivered to tissues of the body, caussed by low output of blood from the heart.
Congestive Heat Failure (CHF) When the heart loses part of its ability to effectively pump blood, usually result of heart muscle tissue. Left side will backup into the lungs and right side will backup into vena ceva.
Coronary Arteries Blood vessels that carry blood and nutrients to the heart muscle
Defibrillate To shock a fibrillating (chaotically beating) heart with specialized electric current in attempt to normalize the rhythm
Dependent Edema Swelling in the part of the body closest to the ground, caused by collection of fluid in the tissues; possible sign of CHF
Dysrhythmia An irregular or abnormal heart rhythm.
Hypertensive Emergancy Excessively high blood pressure, which can lead to serious complications such as stroke of aneurysm.
Infarction Death of body tissue, usually caused by interruption of its blood supply
Ischemia Lack of oxygen that deprives tissues of necessary nutrients, resulting from partial or complete blockages of blood from; potentially reversible
Lumen Inside diameter of an artery or other hollow structure
Occultion A blockage, usually of a tubular structure such as a blood vessel.
Parasympathetic Nervous System Part of the autonomic nervous system that controls vegetative functions such as digestion of food and relaxation
Perfusion Flow of blood through body tissues and vessels.
Stroke volume Volume of blood ejected with each ventricular contraction
Sympathetic Nervous System Part of autonomic nervous system that controls active functions such as responding to fear ("fight or flight")
Syncope A fainting spell or transient loss of conciousness
Tachycardia Rapid heat beat, more than 100 beats/min
Thromboembolism Blood clot that has formed within blood vessel and is floating within bloodstream
Ventricle Right and left lower chambers of the heart. Left receives blood from left atrium and delivers to aorta. Right receives blood from right atrium and delivers into pulmonary artery.
Ventricular Fibrillation Disorganized, ineffective quivering of ventricles, no blood flow and state of cardiac arrest
Ventricular Tachycardia Rapid heart rhythm in which electrical impulse begins in the ventricle (instead of atrium), may result in inadequate blood flow and deteriorate into cardiac arrest.
Created by: cowens13