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Located between the left ventricle and the aorta

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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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Circulates continuously throughout the body, transports oxygen from lungs to the body cells, carbon dioxide from the body cells to the lungs, nutrients from the digestive tract to body cells, metabolic and waste products from the body cells to organs of excretion, heat produced by various body parts, and hormones produced by endocrine glands to the body parts

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connect arterioles with venules, and smallest veins. Located in close proximity to almost every cell in the body

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AKA Cardiovascular system, referred as the "transportation" system of the body; consists of the heart, blood vessels, and blood; transports oxygen and nutrients to the body cells and transports carbon dioxide and metabolic materials away from the body cell

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brief period of rest

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Smooth layer of cells that lines the inside of the heart and is continuous with the inside of blood vessels

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red blood cells, produced in the red bone marrow at a rate of about one million per minute

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a complex protein composed of the protein molecule called globin and the iron compound called heme; carries both oxygen and carbon dioxide

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where the pulmonary carries blood to the lungs for oxygen

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Receives blood from the left atrium and pumps the blood into the aorta from transportation to the body cells

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White blood cells, are not as numerous as are erythrocytes; main function is to fight infection

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Located between the left atrium and left ventricle. It closes with the left ventricle is contracting, allowing blood to flow into the aorta and preventing blood from flowing back into the left atrium

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Thickest layer of tissue that forms the heart: the muscular middle layer

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Double layered membrane or sac, that covers the outside of the heart

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90% water, with many dissolved, or suspended substances, there are blood proteins and nutrients

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Located between the right ventricle and the pulmonary artery, a blood vessel that carries blood to the lungs, it closes when the right ventricle has contracted, preventing blood from flowing back to the right ventricle

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Receives blood as it returns from the body cells

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Receives blood from the right atrium and pumps the blood into the pulmonary artery

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a muscular wall that separates the heart into a right side and a left side, prevents blood from moving between the right and left sides of the heart

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Period of ventricular contraction

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Also called platelets, usually described as fragments or pieces of cells because they lack nuclei and vary in shape and size

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located between the right atrium and the right ventricle. It closes when the right ventricle contracts blood to flow to the lungs preventing it from flowing back into the right atrium

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Blood vessels that carry blood back to the heart