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located between the left ventricle and the aorta which is the largest artery in the body.

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abnormal heart rhythms and can be mild to life threatening

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carry blood AWAY from the heart

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contains many kinds of cells, often called a tissue

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connect arterioles with venules

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often reffered to as the transportation system of the body

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a brief period of rest

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a smooth layer of cells that lines the inside of the heart and is continuous inside the blood vessels

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red blood cells produced in red bone marrow

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a complex protein composed of the protein molecule called globin

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recieves oxygenataed blood from the cells

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receives blood from the left atrium and pumps blood into the aorta for transport to the body cells

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white blood cells, not as nuumerous as erythrocytes

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located between the left atrium and left ventricle

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the musclular middle layer and thickest layer

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a double layered membrane or sac that covers the outside of the heart

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the fluid formed or solid elements of blood cells

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located between the right ventricle and pulmonary artery

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recieves blood as it reeturns from the body cells

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receives blood from the right atrium and pumps blood into the pulmonary artery that carries blood to the lungs for oxygen

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a muscular wall that seperates the heart into a right and left side

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a period of ventricular contraction

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also called platelets, fragments or pieces of cells

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located between the right atrium and the right ventricle

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blood vessels that carry blood back to the heart