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| largest artery in the body |
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| largest type of blood vessel; carries blood away from the heart to all the parts of the body |
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| artioventricular bundle(bundle of His) |
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| specialized muscle fibers connecting the atria with the ventricles and transmitting electricla impulses btw them |
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| atrioventricular node(AV node) |
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| specialized tissue in the wall btw the atria. electrical impulses pass from the pacemaker(SA node) through the AV node and the atrioventricular bundle or bundle of His toward the ventricles |
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| one of two upper chambers of the heart |
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| smallest blood vessel, material pass to and from the bloodstream through the thin capillary of the heart |
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| gas(waste) released by the body cells, transported via veins to the heart, and then to the lungs for exhalation |
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| blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle |
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| blood that is oxygen poor |
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| relaxation phase of the heatbeat |
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| record of the electricity flowing through the heart, the electricity is represented by waves or deflections called P, QRS, or T. |
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| inner lining of the heart |
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| innermost lining of blood vessels |
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| valve btw the L atrium and the L ventricle; bicuspid valve |
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| abnormal swishing sound caused by improper closure of the heart valves |
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| muscular, middle layer of the heart |
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| heart rhythm originating in the sinoatrial node with a resting rate of 60-100 beats per minute |
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| gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells |
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| pacemaker(sinoatrial node; SA node) |
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Definition
| specialized nervous tissue in the R atrium that begins the heartbeat |
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| double-layered membrane surrounding the heart |
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| artery carrying oxygen-poor blood from the heart to the lungs |
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| flow of blood from the heart to the lungs and back to the heart |
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| valve positioned btw the R ventricle and the pulmonary artery |
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| one of two pairs of vessels carrying oxygenated blood from the lungs to the L atrium of the heart |
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| beat of the heat as felt through the walls of the arteries |
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| partition or wall dividing a cavity; such as btw the R and L atria and the R and L ventricles |
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| sinoatrial node (SA node) |
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| instrument to measure blood pressure |
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| flow of blood from body tissue to the heart and then from the heart back to body tissues |
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| contracting phase of the heartbeat |
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| located btw the R atrium and the R ventricle; it has three leaflets, or cusps |
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| structure in the veins or in the heart that temporarily closes an opening so that blood flows in only one direction |
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| thin-walled vessel that carries blood from the body tissue and lungs back to the heart, veins contain valves to prevent back flow of blood |
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| largest vein in the body, the superior and inferior vena cava return blood to the R atrium of the heart |
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| one of two lower chambers of the heart |
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| yellowish plaque, fatty substance |
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| atrium, upper heart chamber |
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| ventricle, lower heart chamber |
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Definition
| abnormal heart rhythms(dysrhythmias) |
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| bradycardia & heart block |
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Definition
| failure of proper conduction of impulses from the SA node through the AV node to the atrioventricular bundle(bundle of His) |
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| rapid but regular contraction, usually of the atria |
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| very rapid, random, inefficient, and irregular contractions of the heart(350 beats or more per minute) |
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| abnormalities in the heart at birth |
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| coarctation of the aorta(CoA) |
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| passageway btw the aorta and the pulmonary artery remains open after birth |
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| small holes in the wall btw the atria or the ventricles |
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| congenital malformation involving four distinct heart defects |
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| congestive heart failure(CHF) |
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Definition
| heart is unable to pump its required amount of blood |
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| coronary artery disease(CAD) |
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Definition
| disease of the arteries surrounding the heart |
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Definition
| inflammation of the inner lining of the heart |
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| hypertensive heart disease |
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Definition
| high blood pressure affecting the heart |
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| mitral valve prolapse(MVP) |
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Definition
| improper closure of the mitral valve |
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| extra heart sound, heard btw normal beats |
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| inflammation of the membrane surrounding the heart |
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| heart disease caused by rheumatic fever |
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Definition
| local widening(dilation) of an arterial wall |
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| deep vein thrombosis(DVT) |
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Definition
| blood clot forms in a large vein, usually in a lower limb |
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| peripheral arterial disease(PAD) |
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| blockage of arteries carrying blood to the legs, arms, kidneys and other organs |
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| recurrent episodes of pallor and cyanosis primarily in fingers and toes |
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| abnormally swollen and twisted veins, usually occurring in the legs |
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| acute coronary syndromes(ACSs) |
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Definition
| unstable angina and myocardial infarction(heart attack) which are consequences of plaque rupture in coronary arteries |
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Definition
| chest pain resulting from myocardial ischemia, stable angina occurs predictably with exertion; unstable angina is chest pain that occurs more often and with less exertion |
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Term
| angiotensin-converting enzyme(ACE)inhibitor |
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Definition
| antihypertensive drug that blocks the conversion of angiotensin i to angiotensin ii causing blood vessels to dilate, it prevents heart attacks, CHF, stroke, and death |
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Definition
| listening for sounds in the blood vessels or other body structures |
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| drug used to treat angina, hypertension, and arrhythmias, it blocks the action of epinephrine at receptor sites on cells, slowing the heartbeat and reducing the workload on the heart |
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| device enabling ventricles to beat together so that more blood is pumped out of the heart |
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| abnormal blowing or swishing sound heard during auscultation of an artery or organ |
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| drug used to treat angina and hypertension, it dilates blood vessels by blocking the influx of calcium into muscle cells lining vessels |
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| sudden,unexpected stoppage of heart action; sudden cardiac death |
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| pressure on the heart caused by fluid in the pericardial space |
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| pain,tension,and weakness in a leg after walking has begun, but adsence of pain at rest |
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| drug that treat arrhythmias and strengthens the heartbeat |
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| clot or other substance that travels to a distant location and suddenly blocks a blood vessels |
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| drug used in the tx of angina, they dilate blood vessels, increasing blood flow and oxygen to myocardial tissue |
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