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Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

angi/o-   vessel (blood)  
aort/o-   aorta (largest artery)  
arteri/o-   artery  
erythr/o-   red  
hemat/o-   blood  
leuk/o-   white  
megal/o-   large  
myel/o-   spinal cord; bone marrow  
pheleb/o-   vein  
thromb/o-   clot  
ven/o-   vein  
brady-   slow  
tachy-   fast  
trans-   across; through  
-crasia   mixture or blending  
-cytes   cell  
-emia   blood condition  
-gram   record  
-oma   tumor; mass; fluid collection  
-pathy   disease; emotion  
ACE inhibitor   any one of a class of drugs, including captopril, enalapril, and ramipril, that cause the arteries to widen by preventing the synthesis of angiotensin: used to treat high blood pressure and heart failure  
anemia   a deficiency in the number of red blood cells or in their haemoglobin content, resulting in pallor, shortness of breath, and lack of energy  
aneurysm   a sac formed by abnormal dilation of the weakened wall of a blood vessel  
angina   any attack of painful spasms characterized by sensations of choking or suffocating.  
angioplasty   a surgical technique for restoring normal blood flow through an artery narrowed or blocked by atherosclerosis, either by inserting a balloon into the narrowed section and inflating it or by using a laser beam  
anticoagulant   preventing coagulation, especially of blood.  
aplastic anemia   A form of anemia in which the capacity of the bone marrow to generate red blood cells is defective, caused by bone marrow disease or exposure to toxic agents, such as radiation, chemicals, or drugs.  
arrhythmia   any variation from the normal rhythm in the heartbeat  
atherectomy   the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter.  
atherosclerosis   a common form of arteriosclerosis in which fatty substances form a deposit of plaque on the inner lining of arterial walls  
atrial fibrillation   fibrillation in which the normal rhythmical contractions of the cardiac atria are replaced by rapid irregular twitchings of the muscular wall that cause the ventricles to respond irregularly.  
automated external defibrillator   a portable electronic device that automatically diagnoses the potentially life threatening cardiac arrhythmias of ventricular fibrillation and ventricular tachycardia in a patient,[1] and is able to treat them through defibrillation  
beta-blocker   any of various substances that interfere with the action of the beta receptors: used primarily to reduce the heart rate or force in the prevention, management, or treatment of angina, hypertension, or arrythmias  
blood dyscrasia   A diseased state of the blood, usually one in which the blood contains permanent abnormal cellular elements.  
bradycardia   a slow heartbeat rate, usually less than 60 beats per minute.  
cardiac arrest   failure of the pumping action of the heart, resulting in loss of consciousness and absence of pulse and breathing  
cardiac catheterization   medical procedure used to diagnose and treat some heart conditions.  
cardiomyopathy   any disease of the heart muscle, leading to decreased function: usually of unknown cause.  
carotid endarterectomy   a surgical procedure used to prevent stroke  
cholesterol   Cholesterol is a waxy substance that's found in the fats (lipids) in your blood.  
chronic venous insufficiency   a medical condition where the veins cannot pump enough oxygen-poor blood back to the heart  
coronary thrombosis   A blockage of the flow of blood to the heart, caused by a blood clot in a coronary artery.  
defibrillation   The stopping of fibrillation of the heart by administering a controlled electric shock in order to allow restoration of the normal rhythm.  
diuretic   (chiefly of drugs) Causing increased passing of urine  
electrocardiogram   A record or display of a person's heartbeat produced by electrocardiography.  
embolism   1.Obstruction of an artery, typically by a clot of blood or an air bubble.  
embolus   undissolved material carried by the blood and impacted in some part of the vascular system, as thrombi or fragments of thrombi, tissue fragments, clumps of bacteria, protozoan parasites, fat globules, or gas bubbles.  
endocarditis   Inflammation of the endocardium.  
erythrocytes   A cell that contains hemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC).  
hemoglobin   A red protein responsible for transporting oxygen in the blood of vertebrates.  
hemolytic anemia   anemia resulting from destruction of erythrocytes.  
hemostasis   The stopping of blood flow.  
ischenic heart disease   a disease characterized by ischaemia (reduced blood supply) of the heart muscle, usually due to coronary artery disease  
leukemia   any of several cancers of the bone marrow that prevent the normal manufacture of red and white blood cells and platelets, resulting in anemia, increased susceptibility to infection, and impaired blood clotting.  
leukocytes   white blood cell.  
leukopenia   a decrease in the number of white blood cells in the blood.  
megaloblastic anemia   Anemia in which there is a predominant number of megaloblasts and relatively few normoblasts among the hyperplastic erythroid cells in the bone marrow.  
myelodysplastic syndrome   a disease that is associated with decreased production of blood cells  
myocardial infarction   commonly known as a heart attack, results from the partial interruption of blood supply to a part of the heart, causing heart cells to die  
orthostatic hypotension   fall in blood pressure associated with an upright position, usually occurring as a result of standing still for a long time or rising from a prolonged stay in bed and often causing faintness, dizziness, and vision disturbances  
paroxysmal atrial tachycardia   A period of very rapid and regular heart beats that begins and ends abruptly. The heart rate is usually between 160 and 200 beats per minute.type of arrhythmia (irregular heartbeat).  
pericardium   the fluid filled sac that surrounds the heart and the proximal ends of the aorta, vena cava, and the pulmonary artery.  
pernicious anemia   a condition in which the body can't make enough healthy red blood cells because it doesn't have enough vitamin B12.  
phlebitis   a condition in which a vein becomes inflamed  
raynaud's phenomenon   a condition where blood flow to your fingers, toes, ears or nose is restricted or interrupted  
septicemia   A systemic disease caused by pathogenic organisms or their toxins in the bloodstream. Also called blood poisoning.  
sickle cell anemia   Sickle cell anemia is a condition characterized by a lack of healthy red blood cells to deliver enough oxygen throughout the body  
tachycardia   Tachycardia is a heart rate that exceeds the normal range. A heart rate over 100 beats per minute  
thallium stress test   a nuclear imaging test that shows how well blood flows into the heart during exercise and at rest  
thrombocytopenia   a condition in which your blood has a lower than normal number of blood cell fragments called platelets  
thrombolytic   Thrombolytic drugs are used in medicine to dissolve blood clots in a procedure termed thrombolysis  
thrombosis   the formation of a blood clot inside a blood vessel, obstructing the flow of blood through the circulatory system  
thrombotic occlusion   a blockage within a blood vessel caused by a clot or thrombus.  
thrombus   fibrinous clot that forms in and obstructs a blood vessel, or that forms in one of the chambers of the heart  
transfusion reaction   reaction of the body to a transfusion of blood that is not compatible with its own blood; an adverse reaction can range from fever and hives to renal failure and shock and death  
valvulitis   inflammation of a valve, especially a heart valve, often caused by rheumatic fever.  
varicose veins   a condition in which the superficial veins, esp of the legs, become tortuous, knotted, and swollen: caused by a defect in the venous valves or in the venous pump that normally moves the blood out of the legs when standing for long periods  
ventricular fibrillation   a cardiac arrhythmia characterized by rapid, chaotic electrical impulses to the ventricles, incomplete ventricular contractions, and resultant loss of pulse and blood pressure.  
ventricular tachycardia   a cardiac arrhythmia in which the muscles of the ventricles contract irregularly in a rapid, uncoordinated manner, impairing the normal pumping of blood.  
ather/o-   Soft gruel-like deposit  
atheroma   a mass of yellowish fatty and cellular material that forms in and beneath the inner lining of the arterial walls.  


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