What are all the structures a red blood cells pass in the heart?
Blood comes in the right atrium from the Superior and inferior vena cave. Then the blood goes through tricuspid valve into the right ventricle, then goes through the Pulmonary valve to the lungs to get oxygenated. The blood then comes from the lungs into the left atrium, passe through the mitral valve into the left ventricle. Once the blood is in the left ventricle it passes through the aortic valve into the aorta and the rest of the body.