is the tricuspid valve oxygenated
Answers. 1  the deoxygenated blood returns via the veins to the Right Atrium, then through the tricuspid valve to the Right Ventricle. The Right Ventricle then pumps the blood thru the pulmonary valve, pulmonary arteries and into the lungs, where oxygen is taken up by the red blood cells. The oxygenated blood then returns to the heart via the pulmonary veins and into the left Atrium, thru the mitral valve and into the Left Ventricle. The Left Ventricle pumps the oxygenated blood thru the aortic valve into the aorta and away it goes to the rest of the body .