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Circulatory System

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Term
Definition
circulatory system   Also known as the cardiovascular system  
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heart   muscular hollow organ called the "pump" of the body  
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endocardium   inner layer of the heart  
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myocardium   middle layer of the heart  
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pericardium   outer layer of the heart  
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septum   separates the heart into left and right sides  
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atria   upper chambers of the heart  
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ventricles   lower chambers of the heart  
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tricuspid valve   one-way valve located between the right atrium and right ventricle.  
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pulmonary valve   one-way valve located between the right ventricle and pulmonary artery.  
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pulmonary valve   Takes deoxygenated blood to the lungs.  
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bicuspid or mitral valve   one-way valve located between the left atrium and left ventricle  
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aortic valve   one-way valve located between the left ventricle and aorta.  
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aorta   largest artery in the body  
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aortic valve   takes oxygenated blood to the body cells.  
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pulmonary veins   bring oxygenated blood from the lungs.  
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arteries   carry blood away from the heart  
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veins   carry blood to the heart.  
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capillaries   connect arteries and veins.  
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diastole   brief period of rest in the cardiac cycle  
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systole   period of ventricular contraction in the cardiac cycle  
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closed fist   the size of the heart  
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oxygen and nutrients   transported to the body cells  
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carbon dioxide and metabolic materials   transported away from the body cells.  
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Created by: ntgibson
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