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The circulatory system is big and complex. The basics are that generally arteries convey oxygenated blood, while veins carry deoxygenated blood. The left side of the pig conveys oxygenated blood and the right conveys deoxygenated. The only exception to the artery vein rule is in the pulmonary artery and vein. The pulmonary vein, in this case, conveys oxygenated blood to the left atrium away from the lungs. The pulmonary artery then carries deoxygenated blood away from the left ventricle to the lungs. To start the right atrium conveys blood from the superior vena cava to the right ventricle. The left atrium conveys blood from pulmonary vein to left ventricle. THe right ventricle conveys blood from the right atrium to the pulmonary artery. The left ventricle gives blood from the left atrium to the aorta. The coronary artery is the artery snaking down the middle of the heart conveying oxygenated blood around the heart. The aorta transports blood from the left ventricle to the arteries. The superior vena cava conveys deoxygenated blood from the upper body to the right atrium. The inferior vena cava conveys deoxygenated blood from the lower body to the right atrium. The common carotid arteries convey oxygenated blood from heart to head. The external and internal jugular veins convey deoxygenated blood from head to heart. The subscapular arteries give blood to the shoulders and the axillary give blood to the armpits. Renal arteries convey oxygenated blood from the aorta to kidneys. The renal veins convey deoxygenated blood from the kidneys to the inferior vena cava. Femoral arteries give blood to legs while iliac arteries and veins give blood to genitals. THe ductus arteriosis, the webbing above the heart gives blood o the aorta from the pulmonary artery. The umbilical artery is simply used for blood exchange when the mother during early develoopment of the pig feti.

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