During atrial contraction
1) Deoxygenated blood from the right atrium goes to right ventricle
2) Deoxygenated blood from right ventricle goes to pulmonary veins
3) Oxygenated blood from right artirum goes to right ventricle
4) Deoxygenated blood from the left atrium goes to left ventricle
1) Deoxygenated blood from the right atrium goes to right ventricle