This is the simple and short explanation of normal CIRCULATION OF BLOOD, the Superior Vena Cava and Inferior Vena Cava carry the deoxygenated blood to the Right Atrium which flows to the Right Ventricle going to Pulmonary Artery then Lungs, then the Pulmonary Vein carries oxygenated blood from the Lungs to the Left Atrium, then the Left Ventricle receives oxygenated blood from the Left Atrium going to Aorta which distributes oxygenated blood to all parts of the body throught the systemic circulation. I can show you a simple diagram that is easy to remember:
Superior Vena Cava
Inferior Vena Cava
l
l
Right Atrium
l (deoxygenated blood)
Right Ventricle
l
Pulmonary Artery
l
Lungs
l
Pulmonary Veins
l (oxygenated blood)
Left Atrium
l
Left Ventricle
l
Aorta
l
Different Parts Of The Body
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