Cardiovascular Sytm
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| Circulatory system | known as the cardiovascular system consists of the heart, blood vessels, and blood
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| endocardium | a smooth layer of cells that lines the inside of the heart and is continuous the inside of blood vessels
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| myocardium | the thickest layer, the muscular middle layer
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| percardium | doubled layered membrane sac, that covers the outside of the heart
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| septum | a muscular wall that separates the heart into a right side and a left side
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| right atrium | receives blood as it returns from the body cells
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| right ventricle | receives blood from the right atrium and pumps blood into the pulmonary artery, which carries the blood to the lungs for oxygen
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| left atrium | receives oxygenated blood from the lungs
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| left ventricle | receives blood from the left atrium and pumps the blood into the aorta for transport to the body cells
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| tricuspid valve | located between the right atrium and right ventricle contracts allowing blood to flow to the lungs and preventing blood from flowing back into the right atrium
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| pulmonary valve | between the right ventricle and pulmonary artery a blood vessel that carries blood to the lungs
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| mitral valve | located between the left atrium and left ventricle It closes when the left ventricle is contracting allowing blood into the aorta and prevent blood flowing back into the left atrium
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| aortic valve | biggest artery in the body. it closes when left ventricle is finished contracting. allow blood back to the aorta prevent flow to the left ventricle
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| diastole | cycle consist of a brief period of rest
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| systole | period of ventricular or contraction
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| Arteries | carry blood away from the heart
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| Capillaries | connect arterioles with venules, the smallest vein
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| Veins | are blood vessels that carry blood back to the heart
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| Blood | flows through the circulatory system often called tissues for its different types of cells
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| Plasma | approximately 90 percent water, with many dissolved or suspend minerals
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| Erythrocytes | red blood cells, are produced in the red bone marrow at a rate of one million per minute
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| hemoglobin | a complex protein composed of the protein molecule called globin and the iron compound called heme.
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| Leukocytes | white blood cells, are not as numerous as are erythrocytes
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| Arrhythmia | abnormal heart rhythm and is mild to life threatening
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| PAC | premature atrial contraction
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| Defibrillator | a device that shocks the heart with an electrical current to stop the coordinated contraction of the heart and allow the SA node to regain control
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| Pacemaker | a small battery powered device with electrodes
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| CHF | congestive heart failure
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| Aneurysm | a ballonning out of, or saclike formation on an artery wall
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| Atherosclerosis | when fatty plaques are depoisted on the wall of the arteries
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| embolus | a foreign substances circulating in the bloodstream
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| Hyportension | high blood pressure
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| MI | myocardial infraction
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| Phlebitis | an inflammation of a vein, frequently in the leg
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| Anemia | an inadequate number of red blood cells, hemoglobin, or both.
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| Arteriosclerosis | a hardening or thickening of the arterial walls resulting in a loss of elasticity
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| Hemophilia | an inherited disease that occurs almost exclusively in males but can be carried in females
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| Varicose veins | dilated, swollen veins that have lost elasticity and causes decreased blood flow
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