In systemic circulation, a drop of blood that is [ Select ] ["poor in oxygen", "rich in oxygen"] in the [ Select ] ["right atrium", "left atrium", "right ventricle"] will first travel through the [ Select ] ["pulmonary semilunar valve", "aortic semilunar valve", "tricuspid valve", "bicuspid valve"] to reach the left ventricle. From there it will be pumped through the [ Select ] ["bicuspid valve", "pulmonary semilunar valve", "aortic semilunar valve", "tricuspid valve"] to reach the [ Select ] ["aorta", "pulmonary artery", "pulmonary trunk", "superior vena cava"] , which will branch into smaller arteries and arterioles. The blood leaving the arterioles will enter the capillaries surrounding the systemic tissues. The blood exiting the capillaries is [ Select ] ["rich in oxygen", "poor in oxygen"] and will first travel in venules, which will fuse into bigger veins. Eventually the blood will enter into the [ Select ] ["right ventricle", "left atrium", "right atrium", "left ventricle"] via either [ Select ] ["aorta or pulmonary artery", "pulmonary artery or pulmonary vein", "superior vena cava or inferior vena cava"]