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The Cardiovascular System

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Term
Definition
angi/o-   vessel (blood)  
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aort/o-   aorta (largest artery)  
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arteri/o-   artery  
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ather/o-   plaque (fatty substance)  
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erythr/o-   red  
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hem/o-   blood  
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hemat/o-   blood  
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leuk/o-   white  
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megal/o-   large; abnormal enlargement  
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myel/o-   spinal cord; bone marrow  
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phleb/o-   vein  
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thromb/o-   clot  
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ven/o-   vein  
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brady-   slow  
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tachy-   fast  
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trans-   across; through  
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-crasia   mixture or blending  
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-cytes   cell  
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-emia   blood condition  
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-gram   record  
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-oma   tumor; mass; fluid collection  
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-pathy   disease; emotion  
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ACE inhibitor   an antihypertensive drug that blocks the formation of angiotensin II in the kidney, leading to relaxation of the arteries  
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anemia   A condition marked by a deficiency of red blood cells or of hemoglobin in the blood, resulting in pallor and weariness.  
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aneurysm   An excessive localized enlargement of an artery caused by a weakening of the artery wall.  
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angina   1.A condition marked by severe pain in the chest, often spreading to the shoulders, arms, and neck, caused by an inadequate blood supply  
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angioplasty   Surgical repair or unblocking of a blood vessel, esp. a coronary artery.  
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anticoagulant   Having the effect of retarding or inhibiting the coagulation of the blood.  
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aplastic anemia   Deficiency of all types of blood cells caused by failure of bone marrow development.  
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arrhythmia   A condition in which the heart beats with an irregular or abnormal rhythm.  
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atherectomy   a minimally invasive surgical method of removing, mainly, atherosclerosis from a large blood vessel within the body  
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atheroma   1.Degeneration of the walls of the arteries caused by accumulated fatty deposits and scar tissue.  
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atherosclerosis   A disease of the arteries characterized by the deposition of plaques of fatty material on their inner walls.  
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atrial fibrillation   fibrillation of the muscles of the atria of the heart.  
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automated external defibrillator   an electronic apparatus used to counteract atrial or ventricular fibrillation by application of a brief electric shock  
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beta-blocker   Any of a class of drugs that prevent the stimulation of the adrenergic receptors responsible for increased cardiac action  
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blood dyscrasia   any abnormal condition of the blood  
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bradycardia   Abnormally slow heart action  
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cardiac arrest   A sudden, sometimes temporary, cessation of function of the heart  
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cardiac catheterization   the insertion of a catheter into a chamber or vessel of the heart  
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cardiomyopathy   Chronic disease of the heart muscle  
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carotid endarterectomy   a surgical procedure used to prevent stroke  
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cholesterol   A compound of the sterol type, C27H45OH, found in most body tissues and important in metabolism  
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chronic venous insufficiency   a medical condition where the veins cannot pump enough oxygen-poor blood back to the heart  
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coronary thrombosis   A blockage of the flow of blood to the heart, caused by a blood clot in a coronary artery  
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defibrillation   The stopping of fibrillation of the heart by administering a controlled electric shock in order to allow restoration of the normal rhythm  
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diuretic   Causing increased passing of urine  
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electrocardiogram   A record or display of a person's heartbeat produced by electrocardiography  
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embolism   Obstruction of an artery, typically by a clot of blood or an air bubble  
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embolus   a mass of clotted blood or other material brought by the blood from one vessel and forced into a smaller one  
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endocarditis   Inflammation of the endocardium  
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erythrocytes   A red blood cell that (in humans) is typically a biconcave disk without a nucleus  
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hemoglobin   A red protein responsible for transporting oxygen in the blood of vertebrates  
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hemolytic anemia   anemia resulting from destruction of erythrocytes  
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hemostasis   The stopping of blood flow  
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ischemic heart disease   (or myocardial ischaemia) is a disease characterized by ischaemia (reduced blood supply)  
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leukemia   a progressive, malignant disease of the blood-forming organs, marked by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow  
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leukocytes   white blood cells. They protect the body from disease-causing viruses, bacteria, toxins, parasites, and tumor cells.  
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leukopenia   reduction of the number of leukocytes in the blood below about 5000 per cubic mm  
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megaloblastic anemia   reduction below normal of the number of erythrocytes, quantity of hemoglobin, or the volume of packed red cells in the blood; a symptom of various diseases and disorders  
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myelodysplastic syndrome   a disease that is associated with decreased production of blood cells  
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myocardial infarction   Necrosis of a region of the myocardium caused by an interruption in the supply of blood to the heart, usually as a result of occlusion of a coronary artery  
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orthostatic hypotension   an abnormal decrease in blood pressure when a person stands up. This may lead to fainting.  
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paroxysmal atrial tachycardia   A period of very rapid and regular heart beats that begins and ends abruptly  
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pericardium   the fibroserous sac enclosing the heart and the roots of the great vessels  
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pernicious anemia   a disease in which the red blood cells are abnormally formed, due to an inability to absorb vitamin B12  
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phlebitis   inflammation of a vein  
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Raynaud's phenomenon   Sensitivity of the hands to cold due to spasms of the digital arteries, resulting in blanching and numbness of the fingers.  
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septicemia   blood poisoning; systemic disease associated with the presence and persistence of pathogenic microorganisms or their toxins in the blood  
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sickle cell anemia   an autosomal dominant type of hemolytic anemia, seen primarily in those of West African descent, and less often in the Mediterranean basin and a few other areas; it is caused by hemoglobin S with abnormal erythrocytes (sickle cells) in the blood  
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tachycardia   abnormally rapid heart rate  
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thallium stress test   Pharmacologic stress imaging Cardiology A myocardial perfusion technique in which the radionuclide thallium-201–201Tl, is injected as a diagnostic adjunct to cardiac stress tests, to detect regional ischemia or infarction  
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thrombocytopenia   an abnormal drop in the number of blood cells involved in forming blood clots. These cells are called platelets.  
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thrombolytic   a kind of pharmaceutical that can break up clots blocking the flow of blood to the heart muscle  
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thrombosis   Local coagulation or clotting of the blood in a part of the circulatory system  
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thrombotic occlusion   Any vascular blockage caused by a thrombus or by thromboembolism  
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thrombus   A blood clot formed in situ within the vascular system of the body and impeding blood flow  
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transfusion reaction   reaction of the body to a transfusion of blood that is not compatible with its own blood  
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valvulitis   Inflammation of the valves of the heart  
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varicose veins   veins that have become enlarged and tortuous  
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ventricular fibrillation   fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest  
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ventricular tachycardia   fast heart rhythm  
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