Term
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Definition
| the abnormal conduction of the electrical impulse through the heart |
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Term
| absolue refractory period |
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Definition
| the early phase of cardiac repolarization, wherein the heart muscle cannot be stimulated to depolarization |
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Term
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Definition
| term used to describe any group of clinical symptoms consistent with acute myocardial ischemia |
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Term
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Definition
| the resistance against which the ventricle contracts |
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Term
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Definition
| pertaining to the period of dying |
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Term
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Definition
| a cardiac dysrythmia seen just before the heart stops altogether; essentially asystole with occasional QRS complexes |
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Term
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Definition
| the valve b/t the left ventricle and the aorta |
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Term
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Definition
| a pathologic condition in which the arterial walls become thickened and inelastic. |
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Term
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Definition
| the addition to ventricular volume contributed by contraction of the atria. (atrial contraction) |
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Term
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Definition
| a parasympathetic blocker; opposes the action of acetylcholine on the heart and elsewhere, thereby allowing the body's natural sympathetic system to speed upthe heart rate |
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Term
| atrioventricular (AV) valves |
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Definition
| the mitral and tricuspid valves |
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Term
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Definition
| a common type of ateriosclerosis afecting the coronary and cerebral arteries |
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Term
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Definition
| a subdivision of the nervous system that controls the primarily involuntary body functions. it comprises the para- and sympathetic nervous systems |
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Term
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Definition
| spontaneous initiation of depolarizing electric impulses by pacemaker sites within the electric conduction system of the heart |
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Term
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Definition
| abnormal whooshing sounds indicating turbulent blood flow within a blood vessel |
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