What are the four chambers of the heart and their differences?
Deoxogenized blood enters through the superior and inferior vena cava into theright atrium, goes through the tricuspid valve into the right ventricle, then pumped through the plumonary artery to the lungs. The blood comes back from the lungs oxygenized through the plumonary vein into the left atrium, through the mitral valve, into the left ventricle o be pumped through the aorta to the entire human body... and then the cycle repeats.*the four chambers of the heart are bolded.