Describe the path an erythrocyte takes from the posterior (inferior) vena cava to the aorta in a pig?

First blood enters via superior vena cava to the right atrium. Then it flows to right ventricle, flowing past the right AV(atrioventricular) valve. Then it flows up the pulmonary trunk past the semilunar pulmonary valve. From there the blood is pumped to the lungs and gas exchages occurs in the alveola capillaries.(CO2 is swapped with fresh O2) Then the newly oxygenated blood returns back to the heart through the pulmonary veins and enters the left atrium. Then the blood flows to the left ventricle, passing the left AV valve. The left ventricle(the strongest part of the heart) pushes the blood out past the aortic semilunar valve and out of the Aorta and to the rest of the body. Hope that helps! :-)

blood goes in from the inferior vena cava to the right atrium, then through the tricuspid valve to the right ventricle, then it goes through the pulmonary valve to the pulmonary artery to the lungs, then to the pulmonary valve, then it goes to the left atrium and then to the left ventricle through the bicuspid (mitral) valve. Then it goes through the aortic valve to the aorta, then the arteries and the arterioles and the veins and the venules and then the superior and inferior vena cava.