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Cardiovascular
Term | Definition |
---|---|
apex | tip or end of a cone-shaped structure |
cardiologist | one who specializes in the diagnosis and treatment of the heart |
cardiovascular | pertaining to the heart and blood vessels |
intercostal | the space between two ribs |
mediastinum | area between the lungs containing the heart, aorta, venae cavae, esophagus and trachea |
endocardium | the inside lining of the heart |
epicardium | the outer layer of the heart wall |
myocardium | the muscular layer of the heart |
parietal | pertaining to the outer layer of the pericardium and other body cavities |
pericardium | sac-like structure around the heart |
visceral | pertaining to internal organs |
atrioventricular | pertaining to both the atria and the ventricles |
atrium | chamber where blood enters the heart on both the right and left sides |
bicuspid | having two points or flaps |
chordae tendinae | tendinous cords attaching the bicuspid and tricuspid valves the heart wall |
semilunar | appears like a half-moon |
septum | a wall dividing two cavities |
tricuspid | having three points or flaps |
ventricle | chamber of the heart or brain |
AV bundle | pathway for electrical signals to be transmitted to the ventricles |
AV node | part of the heart's conduction system that receives electrical impulses |
diastole | relaxation of heart cavities, during which they fill with blood |
Purkinje fibers | network of nerve fibers in the myocardium |
sinus rhythm | normal (optimal) heart rhythm arising from the sinoatrial node |
systole | contraction of the heart muscle |
arrythmia | an abnormal heart rhythm |
bradycardia | slow heart rate (below 60 beats per minute) |
dysrythmia | an abnormal heart rhythm |
fibrillation | uncontrolled quivering or twitching of the heart muscle |
palpitation | occurring in sharp, spasmodic episodes |
tachycardia | rapid heart rate (above 100 beats per minute) |
cardiomegaly | enlargement of the heart |
cardiopathy | disease of the heart muscle |
cor pulmonale | right-sided heart failure arising from chronic lung disease |
endocarditis | inflammation of the lining of the heart |
myocarditis | inflammation of the heart muscle |
pericarditis | inflammation of the pericardium |
stenosis | narrowing of a canal or passage, like a heart valve |
tamponade | pathologic compression of an organ, like the heart |
angina pectoris | condition of severe pain in the chest due to coronary heart disease |
anoxia | without oxygen |
arteriosclerosis | hardening of the arteries |
asystole | absence of contractions of the heart |
atheroma | lipid deposit in the lining of an artery |
atherosclerosis | atheroma (lipid deposit) in arteries |
hypovolemic | having decreased blood volume in the body |
infarction | sudden blockage of an artery |
ischemia | lack of blood supply to a tissue |
necrosis | pathologic death of tissue or cells |
thrombosis | formation of a blood clot (thrombus) |
coarctation | constriction by narrowing, especially of the aorta |
hypertension | persistent high arterial blood pressure |
hypotension | persistent low arterial blood pressure |
orthopnea | difficulty breathing while lying flat |
brachiocephalic | pertaining to both the head and the arm, as in an artery supplying both |
vasoconstriction | reduction in the diameter of a blood vessel |
vasodilation | increase in diameter of a blood vessel |
aneurysm | dilation or ballooning of an artery or cardiac chamber |
claudication | intermittent leg pain caused by circulatory problems |
embolus | detached piece of thrombus, bacteria, air or foreign body that blocks a blood vessel |
phlebitis | inflammation of a vein |
thrombophlebitis | inflammation of a vein with clot formation |
murmur | abnormal sound heard while auscultating the heart or blood vessels |
sphygmomanometer | instrument used to measure arterial blood pressure |
defibrillator | instrument used to restore normal heart rhythm |
thrombolysis | dissolving a blood clot (thrombus) |