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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 parts of the body |
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ATRIOVENTRICULAR BUNDLE (BUNDLE OF HIS) |
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Definition
| Specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them |
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ATRIOVENTRICULAR NODE (AV NODE) |
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Definition
| Specialized tissue in the wall between the atria. Electrical impulses pass from the pacemaker (SA node) through the AV node and the atrioventricular bundle toward the ventricles |
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| One of two upper chambers of the heart |
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| Smallest blood vessel. Materials pass to and from the bloodstream through the thin capillary walls |
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| Gas (waste) released by 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 heartbeat |
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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 the blood vessels |
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| Valve between the left atrium and the left ventricle; bicuspid valve |
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| Abnormal heart 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 to 100 bpm |
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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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Term
PACEMAKER (SINOATRIAL NODE) (SA NODE) |
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Definition
| Specialized nervous tissue in the right atrium that begins the heartbeat. An artificial cardiac pacemaker is an electronic apparatus implanted in the chest to stimulate heart muscle that is weak and not functioning |
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Definition
| 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 between the right ventricle and the pulmonary artery |
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| One of two pairs of vessels carrying oxygenated blood from the lungs to the left atrium of the heart |
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Definition
| Beat of the heart as felt through the walls of the arteries |
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Definition
| Partition or wall diving a cavity; such as between the right and left atria and right and left ventricles |
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| Instrument to measure blood pressure |
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| Flow of the blood from body tissue to the heart and then from the heart back to the body tissues |
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Definition
| Contraction phase of the heartbeat |
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Definition
| Located between the right atrium and right ventricle; it has three leaflets, or cusps |
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| Structure in 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 body tissues and lungs back to the heart. Veins contain valves to prevent backflow of blood |
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| Largest vein in the body. The superior and inferior venae cavae return blood to the right 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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| Cholesterol (a lipid substance) |
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| Ventricle, lower heart chamber |
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Term
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Definition
| Abnormal heart rhythms (dysrhythmias) |
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Term
| BRADYCARDIA AND HEART BLOCK (ATRIOVENTRICULAR BLOCK) |
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Definition
| Type of arrhythmia where there is failure of proper conduction of impulses from the SA node through the AV node to the atrioventricular bundle. |
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Definition
| Type of arrhythmia where there are rapid but regular contractions, generally of the atria. |
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Definition
| Arrhythmia where there are rapid, random, inefficient, and irregular contractions of the atria and ventricles (350+ bpm) |
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Definition
| Abnormality in the heart at birth |
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Term
| COARCTATION OF THE AORTA (CoA) |
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Definition
| Congenital heart disease where there is narrowing (coarctation) of the aorta |
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Term
| PATENT DUCTUS ARTERIOSUS (PDA) |
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Definition
| Congenital heart disease where a duct (ductus arteriosus) between the aorta and the pulmonary artery, which normally closes soon after birth, remains open (patent) |
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Term
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Definition
| Congenital heart disease consisting of small holes in the septa between the atria (atrial septal defects) or the ventricles (ventricular septal defects) |
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Definition
A congenital malformation of the heart involving four (tetra-) distinct defects. They are: 1.Pulmonary artery stenosis 2.Ventricular septal defect 3.Shift of the aorta to the right 4.Hypertrophy of the right ventricle |
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Term
CONGENITAL HEART FAILURE (CHF) |
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Definition
| The heart is unable to pump its required amount of blood (more blood enters the heart from the veins than leaves through the arteries) |
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Term
| 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 caused by bacteria (bacterial endocarditis). |
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| HYPERTENSIVE HEART DISEASE |
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Definition
| High blood pressure affecting the heart |
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Term
| MITRO VALVE PROLAPSE (MVP) |
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Definition
| Improper closure of the mitro valve |
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Definition
| An extra heart sound, heard between normal beats |
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Definition
| Inflammation of the membrane (pericardium) surrounding the heart |
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Definition
| 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
| A blood clot (thrombus) forms in a large vein, usually a lower limb |
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Definition
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| PERIPHERAL VASCULAR DISEASE (PVD) |
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Definition
| Blockage of the blood vessels outside the heart |
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Definition
| Recurrent episodes of pallor and cyanosis primarily in fingers and toes |
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Definition
| Abnormally swollen and twisted veins usually occurring in the legs |
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Definition
| Consequences of plaque rupture in coronary arteries: unstable angina and myocardial infarcation |
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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 and thus dilates blood vessels. It prevents heart attacks, CHF, stroke, and death. |
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Definition
| Listening for sounds in blood vessels or other body structures, typically using a stethoscope. |
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Definition
| Drugs used to treat angina, hypertension, and arrhythmias. They block the action of epinephrine (adrenaline) at receptor sites on cells, slowing the heartbeat and reducing the workload on the heart. |
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Definition
| Device enabling ventricles to beat together (in synchrony) so that more blood is pumped out of the heart |
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Definition
| An abnormal blowing or swishing sound heard during auscultation of an artery or organ |
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Definition
| Drugs used to treat angina and hypertension. They dilate blood vessels by blocking the influx of calcium into muscle cells lining vessels |
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Definition
| Sudden, unexpected stopping of heart action; sudden cardiac death |
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Definition
| Pressure on the heart caused by fluid in the pericardial space |
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Definition
| Pain, tension, and weakness in a leg after walking has begun, but absence of pain at rest |
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Definition
| A drug that treats arrhythmias and strengthens the heartbeat |
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Definition
| A clot or other substance that travels to a distant location and suddenly blocks a blood vessel |
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Definition
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Definition
| Drugs used in the treatment of angina. They dilate blood vessels, increasing blood flow and oxygen to myocardial tissue |
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Definition
| A nitrate drug used in the treatment of angina |
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Definition
| Closure of a blood vessel |
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Definition
| Uncomfortable sensations in the chest related to cardiac arrhythmias, such as premature ventricular contractions (PVCs) |
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Definition
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Definition
| Scraping or grating noise heard on ausclutation of the heart; suggestive of pericarditis |
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Definition
| Small, pinpoint hemorrhages |
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Definition
| Drugs used to lower cholesterol in the bloodstream |
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Definition
| Vibration felt on touching the body over an area of turmoil in blood flow (as a blocked artery) |
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Definition
| Clumps of platelets, clotting proteins, microorganisms, and red blood cells on the endocardium in conditions such as bacterial endocarditis and rheumatic heart disease |
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