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Cards In This Set
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Aorta
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Largest artery in the body
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Arteriole
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Small artery
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Artery
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Largest type of bloodvessel; carries blood away from the heart to all parts of the body. Notice that artery and away begin with "a"
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Atrioventricular bundle (bundle of His)
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Specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them. His is pronounced "hiss"
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Atrioventricular node (AV node)
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Specialized tissue in the wall between the atria. Electrical impulses pass from the pacemaker (SA node) through the AV node and the atrioventriular bundle or bundle of His toward the ventricles.
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Atrium (plural: atria)
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One of two upper chambers of the heart
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Capillary
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Smallest blood vessel. Materials pass to and from the bloodstream through the thin capillary walls.
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Carbon dioxide (CO2)
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Gas (waste) released by body cells, transported via veins to the heart and then to the lungs for exhalation
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Coronary arteries
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Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle
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Deoxygenated blood
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Blood that is oxygen-poor
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Diastole
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Relaxation phase of the heartbeat
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Electrocardiogram
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Record of the electricity flowing through the hear. The electricity is represented by waves or deflections called P, QRS, or T
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Endocardium
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Inner lining of the heart
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Endothelium
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Innermost lining of blood vessels
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Mitral valve
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Valve between the left atrium and the left ventricle; bicuspid valve
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