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function of cardiovascular system
circulate/transport various substances within the blood
examples of substance transporting things
o2, co2, hormones, nutrients, electrolytes, waste products, antibodies(proteins)
components in cardiovascular system
blood, blood vessels, heart
cardiac cycle
repeating patter of contraction and relaxtion of heart chambers
systole
contraction of heart muscles:
emptying heart chambers of blood
diastole
relation of heart muscles:
filling heart chambers with blood
deoxygenated blood
low in o2, high in co2
oxygenated blood
high in o2, low in co2