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15 Cards in this Set
- Front
- Back
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2 divisions of cardiovascular system |
systemic and pulmonary |
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systemic |
supplies blood to every organ, lungs and wall of heart itself |
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pulmonary |
carries blood to lungs for gas exchange and return to the heart |
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right half of heart |
- supplies pulmonary circuit - receives un oxygenated blood |
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left half of heart |
- supplies systemic circuit - receives oxygenated blood |
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2 large veins of heart |
superior vena cava - drains upper body inferior vena cava- drains everything below diaphragm |
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4 chambers |
2 superior = right/left atria 2 inferior = right/left ventricles |
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atrioventricular valves |
regulate opening between atria and ventricles right av - tricuspid left av - bicuspid |
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pulmonary valve |
controls opening from right ventricle to pulmonary trunk |
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aortic valve |
opening from left ventricle to aorta |
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venous drainage |
route by which blood leaves an organ |
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average heart beat |
75 bpm |
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cardiac muscle |
thick intercalated discs, large mitochondria, |
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nerve supply |
sympathetic can raise heart rate parasympathetic can decrease heart rate |
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contractile activity |
contraction - systole relaxation - diastole |
