Term
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Definition
| Location of the heart. Subdivision of the thoracic cavity, medial to the lungs. Between the sternum and vertebral column. |
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Term
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Definition
| Two upper chambers of the heart; receiving chambers. |
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Term
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Definition
| Two lower chambers of the heart; discharging chambers. |
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Term
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Definition
| Pericardium-1.Fibrous Pericardium 2.Parietal Layer of the Serous Pericardium 3.Pericardial Cavity 4.Visceral Layer of the Serous Pericardium (Epicardium) 5.Myocardium (cardiac muscle) 6.Endocardium |
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Term
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Definition
| Inflamation of the pericardium. |
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Term
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Definition
| Compression of the heart caused by fluid build up in the pericardial cavity. |
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Term
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Definition
| Contraction of the heart. |
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Term
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Definition
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Term
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Definition
| Right Atrioventricular valve, Tricuspid; between rt. atrium & ventricle. |
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Term
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Definition
| Left Atrioventricular valve, bicuspid, mitral; between lt. atrium and ventricle. |
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Term
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Definition
Pulmonary Semilunar Valve; rt. ventricle to pulmonary artery.
Aortic Semilunar Valve; lt. ventricle to aorta. |
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Term
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Definition
| "Leaky" valves; blood can flow backward. |
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Term
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Definition
| Narrow valve; reduced blood flow. |
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Term
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Definition
| Cardiac damage from inflammatory response to streptococcal infection. |
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Term
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Definition
| Mitral Valve Prolapse; edges of valves extend back into atrium. |
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Term
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Definition
| S1,"Lub"; AV valves closing during contraction of the ventricles. |
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Term
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Definition
| S2,"dup"; Semilunar valves closing during relaxation of the ventricles. |
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Term
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Definition
| Abnormal heart sounds; often caused by abnormal valves. |
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Term
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Definition
| Hardening of the arteries, from lipid build up; can partially or totally block coronary blood flow. |
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Term
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Definition
| Chest pain; not enough oxygen to the heart. |
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Term
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Definition
| Sinoatrial Node, Atrioventricular Node, Bundle of His, Rt./Lt. Bundle Branches, Purkinje Fibers. |
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Term
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Definition
| Volume of blood ejected from one ventricle with each beat. |
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Term
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Definition
| Electrocardiograph; tracing of electrial impulses that result in contraction of the heart. |
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Term
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Definition
| Depolarization of the atria. |
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Term
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Definition
| Depolarization of the ventricles. |
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Term
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Definition
| Polarization of the ventricles. |
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Term
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Definition
| Abnormality of heart rhythm. |
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Term
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Definition
| Dysrhythmia. Conduction of impulses is blocked. |
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Term
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Definition
| Slow heart rate; less than 60 beats/minute. |
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Term
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Definition
| Rapid heart rate; more than 100 beats/minute. |
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Term
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Definition
| Variation in heart rate during breathing cycle. |
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Term
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Definition
| Extra systole; contraction that occurs sooner than expected. |
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Term
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Definition
| Cardiac muscle fibers are "out of step"; no effective pumping action. |
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Term
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Definition
| Amount of blood each ventricle can pump each minute; about 5L/min at rest. |
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Term
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Definition
| Muscles that operate the AV valves. |
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Term
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Definition
| Tendons that connect AV valves to the papillary muscles. |
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Term
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Definition
| Pulmonary Circulation (Lungs) and Systemic Circulation (Body). |
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