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describe and explain how blood entering the heart form the body . 4m, vena…
describe and explain how blood entering the heart form the body . 4m
vena cava
right atrium
right atrium contracts
pressure at the right atrium is greater than that of the right ventricle
tricuspid valve opens
right venticle
right ventricle contracts
pressure at the right ventricle is greater than that of the pulmonary artery
semi-lunar valves
aortic arch
1 more item...
deoxygenated blood
