Patient Paperwork - Where to Find CPT Codes. 1  As we leave a doctor's appointment, check out of the hospital, or any other medical facility, we are handed paperwork that, to the professionals, is a numeric summary of the services they provided to us. The five character codes are usually CPT codes.
Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.
Let's review. Your veins drain deoxygenated blood from your body tissues and return it to the heart. Small veins converge to form larger and larger veins, which eventually drain into the venae cavae. The venae cavae empties the deoxygenated blood into the right atrium of the heart. The venae cavae has two divisions.The superior vena cava resembles a drain that leads down into the heart.mall veins converge to form larger and larger veins, which eventually drain into the venae cavae. The venae cavae empties the deoxygenated blood into the right atrium of the heart. The venae cavae has two divisions. The superior vena cava resembles a drain that leads down into the heart.