sites of junction between the adjacent cusps of the heart valves.
concentric hypertrophy diffuse generalized thickening of the
myocardium with little or no change in dimensions of the left
ventricular cavityas seeninpressure overloadofthe left ventricle. converting enzyme the same as kininase II. coronary arteries the arteries that supply the heart muscle and
other parts of the heearet with blood. coronary heart disease obstruction of the coronary arteries with
symptoms such as chest pain, angina, or heart attacks. coronary thrombosis a blood clot in a coronary artery, blocking
blood flow to a part of the heart muscle. Also called a heart
attack or myocardial infarction. creatinine breakdown of proteins excreted into the urine by the
kidneys so that the composition in the bloodstream remains
relatively constant. cryptogenic of obscure or doubtful origin. cyanosis purplish-blue discoloration of the lips, tongue, mucous
membranes, ear lobes, extremities, fingers, and toes.
D
demand or inhibited pacemaker any pacemaker that inhibits its output upon sensing a natural or paced event and fires at the preset rate when the sinus rate falls below the pacemaker’s programmed escape rate.
diapedese the passage of blood cells through intact vessel walls.

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