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Cardiovascular Systm


Red blood cells biconcave cells in blood, lack nuclei when mature
Iron Included in hemoglobin molecules
Homeostasis equilibrium in the body ex. stoppage of blood
pericardium tissue that forms loose-fitting sac around heart
path of blood flow from vena cava to lungs (4) right atrium, tricuspid valve, right ventricle, pulmonary semi-lunar valve
bicuspid & tricuspid valves close when ventricular walls contract
ventricular systole Blood pressure is high in systemic arteries (upper #)
arteries strong, elastic vessels that carry blood away from heart
venules cont. from capillaries to form veins, which carry blood back to atria
coronary arteries supplies blood to myocardium
capillaries blood vessels, thin enough to exchange gases between blood and tissue fluid
what is blood made up of platelets, red blood cells, white blood cells, plasma
white blood cells fight off foreign invaders
pericardial cavity fluid inside reduces friction (lubrication)
heartbeat we actually hear the valves closing in the heart
pacemaker sinoatrial node (S-A node)
valves contained in veins, allow blood to flow through, but block other things from flowing back
Types of arteries carotid, femoral, and aorta
Types of veins Jugular, renal vein, iliac vein, inferior vena cava
What is the normal blood pressure 115/75
blood pressure systolic pressure during ventricular contraction (top # of blood pressure)
blood pressure diastolic ventricular relaxation (bottom # of blood pressure)
Types of blood vessels artery, arteriole, capillary, venule, veins
What is the cardiovascular system It is made up of heart, vessels, and blood
What is the function of the cardiovascular system Transports nutrients to tissues and transports waste from the tissue