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25 Cards in this Set
- Front
- Back
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Cardiovascular sysstem |
A closed system of the heart and blood vessels |
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Function of the cardiovascular system |
To deliver oxygen and nutrients and to remove carbon dioxide and other waste products |
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The heart location |
Thorax between lungs in the inferior mediastinum |
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The heart orientation |
Pointed apex directed toward the left hip, base points toward right shoilder |
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Pericardium |
A double-walled sac |
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Visceral pericardium |
Next to heart also known as the pericardium |
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Parietal pericardium |
Outside layer that lines the inner surface of the fibrous pericardium |
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Serous fluid |
Fills the space between the layers of pericardium |
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The heart. Three layers |
Epicardium, myocardium, endocarium |
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Epicardium |
Outside layer, this layer is the visceral pericardium, connective tissue layer |
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Myocardium |
Middle layer, mostly cardiac muscle |
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Endocardium |
Inner layer, endothelium |
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Chambers of the heart |
Four chambers, two atria, two ventricles |
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Atria |
Relieving chambers, right and left atriym |
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Ventricles |
Discharging chambers, right and left ventricle |
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Interventricular septum |
Separates the two ventricles |
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Interarial septum |
Separates the two atria |
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Valves |
Allow blood to flow in only one direction to prevent backflow |
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Four valves of the heart |
Separated into two sets: atrioventricular and semilunar valves |
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Atrioventricular valves |
Between atria and ventricles, bicuspid and tricuspid |
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Bicuspid valve |
Left side of heart |
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Tricuspid valve |
Left side of heart |
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Semilunar valves |
Between ventricles and artery, pulmonary and aortic |
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Tachycardia |
Rapid heart rate over 100 beats per minute |
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Bradycardia |
Slow heart rate less than 100 beats per minute |
